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Finding the Fourth Proportional to 5,719.52, 7,890.15 and 3,597.68

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Solution

The fourth proportional to 5,719.52, 7,890.15 and 3,597.68 is: 4,963.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.52 : 7,890.15 = 3,597.68 : x
  2. Step 2: Convert to fraction form
    5,719.52/7,890.15 = 3,597.68/x
  3. Step 3: Cross multiply
    5,719.52x = 7,890.15 × 3,597.68
  4. Step 4: Simplify right side
    5,719.52x = 28,386,234.85
  5. Step 5: Solve for x
    x = 28,386,234.85/5,719.52
  6. Step 6: Final answer
    x = 4,963.04

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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.