Home / 1,487.38-2,228.81-1,177.94

Finding the Fourth Proportional to 1,487.38, 2,228.81 and 1,177.94

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Solution

The fourth proportional to 1,487.38, 2,228.81 and 1,177.94 is: 1,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.38 : 2,228.81 = 1,177.94 : x
  2. Step 2: Convert to fraction form
    1,487.38/2,228.81 = 1,177.94/x
  3. Step 3: Cross multiply
    1,487.38x = 2,228.81 × 1,177.94
  4. Step 4: Simplify right side
    1,487.38x = 2,625,404.45
  5. Step 5: Solve for x
    x = 2,625,404.45/1,487.38
  6. Step 6: Final answer
    x = 1,765.12

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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.