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Finding the Fourth Proportional to 5,938.28, 8,909.04 and 1,778.48

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Solution

The fourth proportional to 5,938.28, 8,909.04 and 1,778.48 is: 2,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,938.28 : 8,909.04 = 1,778.48 : x
  2. Step 2: Convert to fraction form
    5,938.28/8,909.04 = 1,778.48/x
  3. Step 3: Cross multiply
    5,938.28x = 8,909.04 × 1,778.48
  4. Step 4: Simplify right side
    5,938.28x = 15,844,549.46
  5. Step 5: Solve for x
    x = 15,844,549.46/5,938.28
  6. Step 6: Final answer
    x = 2,668.21

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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.