Home / 6,081.12-8,389.44-3,722.40

Finding the Fourth Proportional to 6,081.12, 8,389.44 and 3,722.40

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Solution

The fourth proportional to 6,081.12, 8,389.44 and 3,722.40 is: 5,135.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.12 : 8,389.44 = 3,722.40 : x
  2. Step 2: Convert to fraction form
    6,081.12/8,389.44 = 3,722.40/x
  3. Step 3: Cross multiply
    6,081.12x = 8,389.44 × 3,722.40
  4. Step 4: Simplify right side
    6,081.12x = 31,228,851.46
  5. Step 5: Solve for x
    x = 31,228,851.46/6,081.12
  6. Step 6: Final answer
    x = 5,135.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.