Home / 1,263.72-1,895.48-398.04

Finding the Fourth Proportional to 1,263.72, 1,895.48 and 398.04

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Solution

The fourth proportional to 1,263.72, 1,895.48 and 398.04 is: 597.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.72 : 1,895.48 = 398.04 : x
  2. Step 2: Convert to fraction form
    1,263.72/1,895.48 = 398.04/x
  3. Step 3: Cross multiply
    1,263.72x = 1,895.48 × 398.04
  4. Step 4: Simplify right side
    1,263.72x = 754,476.86
  5. Step 5: Solve for x
    x = 754,476.86/1,263.72
  6. Step 6: Final answer
    x = 597.03

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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.