Home / 3,438.38-5,155.25-1,588.47

Finding the Fourth Proportional to 3,438.38, 5,155.25 and 1,588.47

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Solution

The fourth proportional to 3,438.38, 5,155.25 and 1,588.47 is: 2,381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.38 : 5,155.25 = 1,588.47 : x
  2. Step 2: Convert to fraction form
    3,438.38/5,155.25 = 1,588.47/x
  3. Step 3: Cross multiply
    3,438.38x = 5,155.25 × 1,588.47
  4. Step 4: Simplify right side
    3,438.38x = 8,188,959.97
  5. Step 5: Solve for x
    x = 8,188,959.97/3,438.38
  6. Step 6: Final answer
    x = 2,381.63

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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.