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Finding the Fourth Proportional to 3,114.77, 4,672.17 and 806.27

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Solution

The fourth proportional to 3,114.77, 4,672.17 and 806.27 is: 1,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.77 : 4,672.17 = 806.27 : x
  2. Step 2: Convert to fraction form
    3,114.77/4,672.17 = 806.27/x
  3. Step 3: Cross multiply
    3,114.77x = 4,672.17 × 806.27
  4. Step 4: Simplify right side
    3,114.77x = 3,767,007.15
  5. Step 5: Solve for x
    x = 3,767,007.15/3,114.77
  6. Step 6: Final answer
    x = 1,209.40

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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.