Home / 2,479.06-3,718.91-1,309.11

Finding the Fourth Proportional to 2,479.06, 3,718.91 and 1,309.11

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Solution

The fourth proportional to 2,479.06, 3,718.91 and 1,309.11 is: 1,963.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.06 : 3,718.91 = 1,309.11 : x
  2. Step 2: Convert to fraction form
    2,479.06/3,718.91 = 1,309.11/x
  3. Step 3: Cross multiply
    2,479.06x = 3,718.91 × 1,309.11
  4. Step 4: Simplify right side
    2,479.06x = 4,868,452.88
  5. Step 5: Solve for x
    x = 4,868,452.88/2,479.06
  6. Step 6: Final answer
    x = 1,963.83

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1.5x scale

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.