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Finding the Fourth Proportional to 5,291.45, 7,938.32 and 1,593.39

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Solution

The fourth proportional to 5,291.45, 7,938.32 and 1,593.39 is: 2,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.45 : 7,938.32 = 1,593.39 : x
  2. Step 2: Convert to fraction form
    5,291.45/7,938.32 = 1,593.39/x
  3. Step 3: Cross multiply
    5,291.45x = 7,938.32 × 1,593.39
  4. Step 4: Simplify right side
    5,291.45x = 12,648,839.70
  5. Step 5: Solve for x
    x = 12,648,839.70/5,291.45
  6. Step 6: Final answer
    x = 2,390.43

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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.