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Finding the Fourth Proportional to 3,177.74, 4,766.42 and 1,887.42

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Solution

The fourth proportional to 3,177.74, 4,766.42 and 1,887.42 is: 2,831.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.74 : 4,766.42 = 1,887.42 : x
  2. Step 2: Convert to fraction form
    3,177.74/4,766.42 = 1,887.42/x
  3. Step 3: Cross multiply
    3,177.74x = 4,766.42 × 1,887.42
  4. Step 4: Simplify right side
    3,177.74x = 8,996,236.44
  5. Step 5: Solve for x
    x = 8,996,236.44/3,177.74
  6. Step 6: Final answer
    x = 2,831.02

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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.