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Finding the Fourth Proportional to 5,292.39, 7,938.58 and 3,648.49

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Solution

The fourth proportional to 5,292.39, 7,938.58 and 3,648.49 is: 5,472.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.39 : 7,938.58 = 3,648.49 : x
  2. Step 2: Convert to fraction form
    5,292.39/7,938.58 = 3,648.49/x
  3. Step 3: Cross multiply
    5,292.39x = 7,938.58 × 3,648.49
  4. Step 4: Simplify right side
    5,292.39x = 28,963,820.62
  5. Step 5: Solve for x
    x = 28,963,820.62/5,292.39
  6. Step 6: Final answer
    x = 5,472.74

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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.