Home / 1,553.38-2,327.78-1,140.62

Finding the Fourth Proportional to 1,553.38, 2,327.78 and 1,140.62

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Solution

The fourth proportional to 1,553.38, 2,327.78 and 1,140.62 is: 1,709.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.38 : 2,327.78 = 1,140.62 : x
  2. Step 2: Convert to fraction form
    1,553.38/2,327.78 = 1,140.62/x
  3. Step 3: Cross multiply
    1,553.38x = 2,327.78 × 1,140.62
  4. Step 4: Simplify right side
    1,553.38x = 2,655,112.42
  5. Step 5: Solve for x
    x = 2,655,112.42/1,553.38
  6. Step 6: Final answer
    x = 1,709.25

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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.