Home / 3,938.64-5,909.36-2,476.16

Finding the Fourth Proportional to 3,938.64, 5,909.36 and 2,476.16

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Solution

The fourth proportional to 3,938.64, 5,909.36 and 2,476.16 is: 3,715.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.64 : 5,909.36 = 2,476.16 : x
  2. Step 2: Convert to fraction form
    3,938.64/5,909.36 = 2,476.16/x
  3. Step 3: Cross multiply
    3,938.64x = 5,909.36 × 2,476.16
  4. Step 4: Simplify right side
    3,938.64x = 14,632,520.86
  5. Step 5: Solve for x
    x = 14,632,520.86/3,938.64
  6. Step 6: Final answer
    x = 3,715.12

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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.