Home / 5,116.80-7,671.15-2,192.70

Finding the Fourth Proportional to 5,116.80, 7,671.15 and 2,192.70

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Solution

The fourth proportional to 5,116.80, 7,671.15 and 2,192.70 is: 3,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.80 : 7,671.15 = 2,192.70 : x
  2. Step 2: Convert to fraction form
    5,116.80/7,671.15 = 2,192.70/x
  3. Step 3: Cross multiply
    5,116.80x = 7,671.15 × 2,192.70
  4. Step 4: Simplify right side
    5,116.80x = 16,820,530.61
  5. Step 5: Solve for x
    x = 16,820,530.61/5,116.80
  6. Step 6: Final answer
    x = 3,287.31

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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.