Home / 1,553.38-2,331.21-1,143.62

Finding the Fourth Proportional to 1,553.38, 2,331.21 and 1,143.62

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Solution

The fourth proportional to 1,553.38, 2,331.21 and 1,143.62 is: 1,716.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.38 : 2,331.21 = 1,143.62 : x
  2. Step 2: Convert to fraction form
    1,553.38/2,331.21 = 1,143.62/x
  3. Step 3: Cross multiply
    1,553.38x = 2,331.21 × 1,143.62
  4. Step 4: Simplify right side
    1,553.38x = 2,666,010.11
  5. Step 5: Solve for x
    x = 2,666,010.11/1,553.38
  6. Step 6: Final answer
    x = 1,716.27

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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.