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Finding the Fourth Proportional to 5,079.15, 7,008.17 and 2,982.15

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Solution

The fourth proportional to 5,079.15, 7,008.17 and 2,982.15 is: 4,114.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.15 : 7,008.17 = 2,982.15 : x
  2. Step 2: Convert to fraction form
    5,079.15/7,008.17 = 2,982.15/x
  3. Step 3: Cross multiply
    5,079.15x = 7,008.17 × 2,982.15
  4. Step 4: Simplify right side
    5,079.15x = 20,899,399.25
  5. Step 5: Solve for x
    x = 20,899,399.25/5,079.15
  6. Step 6: Final answer
    x = 4,114.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.