Home / 5,381.72-8,074.65-2,097.13

Finding the Fourth Proportional to 5,381.72, 8,074.65 and 2,097.13

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Solution

The fourth proportional to 5,381.72, 8,074.65 and 2,097.13 is: 3,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.72 : 8,074.65 = 2,097.13 : x
  2. Step 2: Convert to fraction form
    5,381.72/8,074.65 = 2,097.13/x
  3. Step 3: Cross multiply
    5,381.72x = 8,074.65 × 2,097.13
  4. Step 4: Simplify right side
    5,381.72x = 16,933,590.75
  5. Step 5: Solve for x
    x = 16,933,590.75/5,381.72
  6. Step 6: Final answer
    x = 3,146.50

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Find fourth proportional to 2,690.86, 4,037.33 and 1,048.57
Half scale
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Double scale
Find fourth proportional to 5,382.72, 8,076.15 and 2,098.13
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.