Home / 1,542.22-2,313.30-372.21

Finding the Fourth Proportional to 1,542.22, 2,313.30 and 372.21

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Solution

The fourth proportional to 1,542.22, 2,313.30 and 372.21 is: 558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.22 : 2,313.30 = 372.21 : x
  2. Step 2: Convert to fraction form
    1,542.22/2,313.30 = 372.21/x
  3. Step 3: Cross multiply
    1,542.22x = 2,313.30 × 372.21
  4. Step 4: Simplify right side
    1,542.22x = 861,035.14
  5. Step 5: Solve for x
    x = 861,035.14/1,542.22
  6. Step 6: Final answer
    x = 558.31

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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.