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Finding the Fourth Proportional to 3,614.71, 4,969.13 and 3,108.70

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Solution

The fourth proportional to 3,614.71, 4,969.13 and 3,108.70 is: 4,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.71 : 4,969.13 = 3,108.70 : x
  2. Step 2: Convert to fraction form
    3,614.71/4,969.13 = 3,108.70/x
  3. Step 3: Cross multiply
    3,614.71x = 4,969.13 × 3,108.70
  4. Step 4: Simplify right side
    3,614.71x = 15,447,506.46
  5. Step 5: Solve for x
    x = 15,447,506.46/3,614.71
  6. Step 6: Final answer
    x = 4,273.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.