Home / 2,479.20-3,717.53-1,309.83

Finding the Fourth Proportional to 2,479.20, 3,717.53 and 1,309.83

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Solution

The fourth proportional to 2,479.20, 3,717.53 and 1,309.83 is: 1,964.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.20 : 3,717.53 = 1,309.83 : x
  2. Step 2: Convert to fraction form
    2,479.20/3,717.53 = 1,309.83/x
  3. Step 3: Cross multiply
    2,479.20x = 3,717.53 × 1,309.83
  4. Step 4: Simplify right side
    2,479.20x = 4,869,335.59
  5. Step 5: Solve for x
    x = 4,869,335.59/2,479.20
  6. Step 6: Final answer
    x = 1,964.08

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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.