Home / 1,272.11-1,756.89-1,024.25

Finding the Fourth Proportional to 1,272.11, 1,756.89 and 1,024.25

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Solution

The fourth proportional to 1,272.11, 1,756.89 and 1,024.25 is: 1,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272.11 : 1,756.89 = 1,024.25 : x
  2. Step 2: Convert to fraction form
    1,272.11/1,756.89 = 1,024.25/x
  3. Step 3: Cross multiply
    1,272.11x = 1,756.89 × 1,024.25
  4. Step 4: Simplify right side
    1,272.11x = 1,799,485.80
  5. Step 5: Solve for x
    x = 1,799,485.80/1,272.11
  6. Step 6: Final answer
    x = 1,414.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.