Home / 7,346.43-10,138.16-3,989.27

Finding the Fourth Proportional to 7,346.43, 10,138.16 and 3,989.27

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Solution

The fourth proportional to 7,346.43, 10,138.16 and 3,989.27 is: 5,505.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346.43 : 10,138.16 = 3,989.27 : x
  2. Step 2: Convert to fraction form
    7,346.43/10,138.16 = 3,989.27/x
  3. Step 3: Cross multiply
    7,346.43x = 10,138.16 × 3,989.27
  4. Step 4: Simplify right side
    7,346.43x = 40,443,892.86
  5. Step 5: Solve for x
    x = 40,443,892.86/7,346.43
  6. Step 6: Final answer
    x = 5,505.24

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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.