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Finding the Fourth Proportional to 3,102.57, 4,649.00 and 1,787.13

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Solution

The fourth proportional to 3,102.57, 4,649.00 and 1,787.13 is: 2,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.57 : 4,649.00 = 1,787.13 : x
  2. Step 2: Convert to fraction form
    3,102.57/4,649.00 = 1,787.13/x
  3. Step 3: Cross multiply
    3,102.57x = 4,649.00 × 1,787.13
  4. Step 4: Simplify right side
    3,102.57x = 8,308,358.43
  5. Step 5: Solve for x
    x = 8,308,358.43/3,102.57
  6. Step 6: Final answer
    x = 2,677.90

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1.5x scale

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.