Home / 3,133.20-4,691.70-2,479.80

Finding the Fourth Proportional to 3,133.20, 4,691.70 and 2,479.80

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Solution

The fourth proportional to 3,133.20, 4,691.70 and 2,479.80 is: 3,713.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.20 : 4,691.70 = 2,479.80 : x
  2. Step 2: Convert to fraction form
    3,133.20/4,691.70 = 2,479.80/x
  3. Step 3: Cross multiply
    3,133.20x = 4,691.70 × 2,479.80
  4. Step 4: Simplify right side
    3,133.20x = 11,634,477.66
  5. Step 5: Solve for x
    x = 11,634,477.66/3,133.20
  6. Step 6: Final answer
    x = 3,713.29

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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.