Home / 3,191.20-4,393.58-2,482.18

Finding the Fourth Proportional to 3,191.20, 4,393.58 and 2,482.18

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Solution

The fourth proportional to 3,191.20, 4,393.58 and 2,482.18 is: 3,417.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.20 : 4,393.58 = 2,482.18 : x
  2. Step 2: Convert to fraction form
    3,191.20/4,393.58 = 2,482.18/x
  3. Step 3: Cross multiply
    3,191.20x = 4,393.58 × 2,482.18
  4. Step 4: Simplify right side
    3,191.20x = 10,905,633.01
  5. Step 5: Solve for x
    x = 10,905,633.01/3,191.20
  6. Step 6: Final answer
    x = 3,417.41

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Half scale
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Double scale
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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.