Home / 3,112.27-4,670.02-1,264.75

Finding the Fourth Proportional to 3,112.27, 4,670.02 and 1,264.75

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Solution

The fourth proportional to 3,112.27, 4,670.02 and 1,264.75 is: 1,897.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.27 : 4,670.02 = 1,264.75 : x
  2. Step 2: Convert to fraction form
    3,112.27/4,670.02 = 1,264.75/x
  3. Step 3: Cross multiply
    3,112.27x = 4,670.02 × 1,264.75
  4. Step 4: Simplify right side
    3,112.27x = 5,906,397.70
  5. Step 5: Solve for x
    x = 5,906,397.70/3,112.27
  6. Step 6: Final answer
    x = 1,897.78

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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.