Home / 1,263.57-1,895.66-397.88

Finding the Fourth Proportional to 1,263.57, 1,895.66 and 397.88

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Solution

The fourth proportional to 1,263.57, 1,895.66 and 397.88 is: 596.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.57 : 1,895.66 = 397.88 : x
  2. Step 2: Convert to fraction form
    1,263.57/1,895.66 = 397.88/x
  3. Step 3: Cross multiply
    1,263.57x = 1,895.66 × 397.88
  4. Step 4: Simplify right side
    1,263.57x = 754,233.73
  5. Step 5: Solve for x
    x = 754,233.73/1,263.57
  6. Step 6: Final answer
    x = 596.91

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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.