Home / 1,372.38-2,058.57-346.38

Finding the Fourth Proportional to 1,372.38, 2,058.57 and 346.38

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Solution

The fourth proportional to 1,372.38, 2,058.57 and 346.38 is: 519.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.38 : 2,058.57 = 346.38 : x
  2. Step 2: Convert to fraction form
    1,372.38/2,058.57 = 346.38/x
  3. Step 3: Cross multiply
    1,372.38x = 2,058.57 × 346.38
  4. Step 4: Simplify right side
    1,372.38x = 713,047.48
  5. Step 5: Solve for x
    x = 713,047.48/1,372.38
  6. Step 6: Final answer
    x = 519.57

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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.