Home / 3,553.28-5,337.60-3,315.20

Finding the Fourth Proportional to 3,553.28, 5,337.60 and 3,315.20

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Solution

The fourth proportional to 3,553.28, 5,337.60 and 3,315.20 is: 4,979.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.28 : 5,337.60 = 3,315.20 : x
  2. Step 2: Convert to fraction form
    3,553.28/5,337.60 = 3,315.20/x
  3. Step 3: Cross multiply
    3,553.28x = 5,337.60 × 3,315.20
  4. Step 4: Simplify right side
    3,553.28x = 17,695,211.52
  5. Step 5: Solve for x
    x = 17,695,211.52/3,553.28
  6. Step 6: Final answer
    x = 4,979.97

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1.5x scale

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.