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Finding the Fourth Proportional to 5,560.38, 7,666.92 and 5,221.35

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Solution

The fourth proportional to 5,560.38, 7,666.92 and 5,221.35 is: 7,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,560.38 : 7,666.92 = 5,221.35 : x
  2. Step 2: Convert to fraction form
    5,560.38/7,666.92 = 5,221.35/x
  3. Step 3: Cross multiply
    5,560.38x = 7,666.92 × 5,221.35
  4. Step 4: Simplify right side
    5,560.38x = 40,031,672.74
  5. Step 5: Solve for x
    x = 40,031,672.74/5,560.38
  6. Step 6: Final answer
    x = 7,199.45

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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.