Home / 5,374.08-8,061.28-1,478.56

Finding the Fourth Proportional to 5,374.08, 8,061.28 and 1,478.56

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Solution

The fourth proportional to 5,374.08, 8,061.28 and 1,478.56 is: 2,217.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,374.08 : 8,061.28 = 1,478.56 : x
  2. Step 2: Convert to fraction form
    5,374.08/8,061.28 = 1,478.56/x
  3. Step 3: Cross multiply
    5,374.08x = 8,061.28 × 1,478.56
  4. Step 4: Simplify right side
    5,374.08x = 11,919,086.16
  5. Step 5: Solve for x
    x = 11,919,086.16/5,374.08
  6. Step 6: Final answer
    x = 2,217.88

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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.