Home / 3,724.38-5,138.64-2,397.60

Finding the Fourth Proportional to 3,724.38, 5,138.64 and 2,397.60

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Solution

The fourth proportional to 3,724.38, 5,138.64 and 2,397.60 is: 3,308.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.38 : 5,138.64 = 2,397.60 : x
  2. Step 2: Convert to fraction form
    3,724.38/5,138.64 = 2,397.60/x
  3. Step 3: Cross multiply
    3,724.38x = 5,138.64 × 2,397.60
  4. Step 4: Simplify right side
    3,724.38x = 12,320,403.26
  5. Step 5: Solve for x
    x = 12,320,403.26/3,724.38
  6. Step 6: Final answer
    x = 3,308.04

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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.