Home / 1,264.15-1,895.68-397.99

Finding the Fourth Proportional to 1,264.15, 1,895.68 and 397.99

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Solution

The fourth proportional to 1,264.15, 1,895.68 and 397.99 is: 596.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.15 : 1,895.68 = 397.99 : x
  2. Step 2: Convert to fraction form
    1,264.15/1,895.68 = 397.99/x
  3. Step 3: Cross multiply
    1,264.15x = 1,895.68 × 397.99
  4. Step 4: Simplify right side
    1,264.15x = 754,461.68
  5. Step 5: Solve for x
    x = 754,461.68/1,264.15
  6. Step 6: Final answer
    x = 596.81

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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.