Home / 1,372.17-2,058.33-398.36

Finding the Fourth Proportional to 1,372.17, 2,058.33 and 398.36

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Solution

The fourth proportional to 1,372.17, 2,058.33 and 398.36 is: 597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.17 : 2,058.33 = 398.36 : x
  2. Step 2: Convert to fraction form
    1,372.17/2,058.33 = 398.36/x
  3. Step 3: Cross multiply
    1,372.17x = 2,058.33 × 398.36
  4. Step 4: Simplify right side
    1,372.17x = 819,946.05
  5. Step 5: Solve for x
    x = 819,946.05/1,372.17
  6. Step 6: Final answer
    x = 597.55

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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.