Home / 3,517.20-5,276.10-1,208.70

Finding the Fourth Proportional to 3,517.20, 5,276.10 and 1,208.70

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Solution

The fourth proportional to 3,517.20, 5,276.10 and 1,208.70 is: 1,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.20 : 5,276.10 = 1,208.70 : x
  2. Step 2: Convert to fraction form
    3,517.20/5,276.10 = 1,208.70/x
  3. Step 3: Cross multiply
    3,517.20x = 5,276.10 × 1,208.70
  4. Step 4: Simplify right side
    3,517.20x = 6,377,222.07
  5. Step 5: Solve for x
    x = 6,377,222.07/3,517.20
  6. Step 6: Final answer
    x = 1,813.15

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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.