Home / 1,263.48-1,895.28-397.76

Finding the Fourth Proportional to 1,263.48, 1,895.28 and 397.76

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Solution

The fourth proportional to 1,263.48, 1,895.28 and 397.76 is: 596.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.48 : 1,895.28 = 397.76 : x
  2. Step 2: Convert to fraction form
    1,263.48/1,895.28 = 397.76/x
  3. Step 3: Cross multiply
    1,263.48x = 1,895.28 × 397.76
  4. Step 4: Simplify right side
    1,263.48x = 753,866.57
  5. Step 5: Solve for x
    x = 753,866.57/1,263.48
  6. Step 6: Final answer
    x = 596.66

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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.