Home / 1,553.12-2,324.80-1,135.76

Finding the Fourth Proportional to 1,553.12, 2,324.80 and 1,135.76

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Solution

The fourth proportional to 1,553.12, 2,324.80 and 1,135.76 is: 1,700.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.12 : 2,324.80 = 1,135.76 : x
  2. Step 2: Convert to fraction form
    1,553.12/2,324.80 = 1,135.76/x
  3. Step 3: Cross multiply
    1,553.12x = 2,324.80 × 1,135.76
  4. Step 4: Simplify right side
    1,553.12x = 2,640,414.85
  5. Step 5: Solve for x
    x = 2,640,414.85/1,553.12
  6. Step 6: Final answer
    x = 1,700.07

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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.