Home / 1,371.35-2,057.33-397.42

Finding the Fourth Proportional to 1,371.35, 2,057.33 and 397.42

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Solution

The fourth proportional to 1,371.35, 2,057.33 and 397.42 is: 596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.35 : 2,057.33 = 397.42 : x
  2. Step 2: Convert to fraction form
    1,371.35/2,057.33 = 397.42/x
  3. Step 3: Cross multiply
    1,371.35x = 2,057.33 × 397.42
  4. Step 4: Simplify right side
    1,371.35x = 817,624.09
  5. Step 5: Solve for x
    x = 817,624.09/1,371.35
  6. Step 6: Final answer
    x = 596.22

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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.