Home / 1,113.38-1,669.51-372.73

Finding the Fourth Proportional to 1,113.38, 1,669.51 and 372.73

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Solution

The fourth proportional to 1,113.38, 1,669.51 and 372.73 is: 558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.38 : 1,669.51 = 372.73 : x
  2. Step 2: Convert to fraction form
    1,113.38/1,669.51 = 372.73/x
  3. Step 3: Cross multiply
    1,113.38x = 1,669.51 × 372.73
  4. Step 4: Simplify right side
    1,113.38x = 622,274.60
  5. Step 5: Solve for x
    x = 622,274.60/1,113.38
  6. Step 6: Final answer
    x = 558.91

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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.