Home / 1,372.14-2,058.12-447.66

Finding the Fourth Proportional to 1,372.14, 2,058.12 and 447.66

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Solution

The fourth proportional to 1,372.14, 2,058.12 and 447.66 is: 671.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.14 : 2,058.12 = 447.66 : x
  2. Step 2: Convert to fraction form
    1,372.14/2,058.12 = 447.66/x
  3. Step 3: Cross multiply
    1,372.14x = 2,058.12 × 447.66
  4. Step 4: Simplify right side
    1,372.14x = 921,338.00
  5. Step 5: Solve for x
    x = 921,338.00/1,372.14
  6. Step 6: Final answer
    x = 671.46

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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.