Home / 7,354.18-10,148.78-3,997.03

Finding the Fourth Proportional to 7,354.18, 10,148.78 and 3,997.03

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Solution

The fourth proportional to 7,354.18, 10,148.78 and 3,997.03 is: 5,515.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,354.18 : 10,148.78 = 3,997.03 : x
  2. Step 2: Convert to fraction form
    7,354.18/10,148.78 = 3,997.03/x
  3. Step 3: Cross multiply
    7,354.18x = 10,148.78 × 3,997.03
  4. Step 4: Simplify right side
    7,354.18x = 40,564,978.12
  5. Step 5: Solve for x
    x = 40,564,978.12/7,354.18
  6. Step 6: Final answer
    x = 5,515.91

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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.