Home / 3,310.70-4,959.15-1,557.20

Finding the Fourth Proportional to 3,310.70, 4,959.15 and 1,557.20

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Solution

The fourth proportional to 3,310.70, 4,959.15 and 1,557.20 is: 2,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.70 : 4,959.15 = 1,557.20 : x
  2. Step 2: Convert to fraction form
    3,310.70/4,959.15 = 1,557.20/x
  3. Step 3: Cross multiply
    3,310.70x = 4,959.15 × 1,557.20
  4. Step 4: Simplify right side
    3,310.70x = 7,722,388.38
  5. Step 5: Solve for x
    x = 7,722,388.38/3,310.70
  6. Step 6: Final answer
    x = 2,332.55

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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.