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Finding the Fourth Proportional to 997.48, 1,495 and 753.24

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Solution

The fourth proportional to 997.48, 1,495 and 753.24 is: 1,128.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    997.48 : 1,495 = 753.24 : x
  2. Step 2: Convert to fraction form
    997.48/1,495 = 753.24/x
  3. Step 3: Cross multiply
    997.48x = 1,495 × 753.24
  4. Step 4: Simplify right side
    997.48x = 1,126,093.80
  5. Step 5: Solve for x
    x = 1,126,093.80/997.48
  6. Step 6: Final answer
    x = 1,128.94

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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.