Home / 1,372.23-2,058.44-398.25

Finding the Fourth Proportional to 1,372.23, 2,058.44 and 398.25

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Solution

The fourth proportional to 1,372.23, 2,058.44 and 398.25 is: 597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.23 : 2,058.44 = 398.25 : x
  2. Step 2: Convert to fraction form
    1,372.23/2,058.44 = 398.25/x
  3. Step 3: Cross multiply
    1,372.23x = 2,058.44 × 398.25
  4. Step 4: Simplify right side
    1,372.23x = 819,771.74
  5. Step 5: Solve for x
    x = 819,771.74/1,372.23
  6. Step 6: Final answer
    x = 597.40

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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.