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Finding the Fourth Proportional to 1,553.96, 2,144.20 and 924.24

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Solution

The fourth proportional to 1,553.96, 2,144.20 and 924.24 is: 1,275.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.96 : 2,144.20 = 924.24 : x
  2. Step 2: Convert to fraction form
    1,553.96/2,144.20 = 924.24/x
  3. Step 3: Cross multiply
    1,553.96x = 2,144.20 × 924.24
  4. Step 4: Simplify right side
    1,553.96x = 1,981,755.41
  5. Step 5: Solve for x
    x = 1,981,755.41/1,553.96
  6. Step 6: Final answer
    x = 1,275.29

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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.