Home / 2,691.23-4,039.00-2,479.55

Finding the Fourth Proportional to 2,691.23, 4,039.00 and 2,479.55

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Solution

The fourth proportional to 2,691.23, 4,039.00 and 2,479.55 is: 3,721.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.23 : 4,039.00 = 2,479.55 : x
  2. Step 2: Convert to fraction form
    2,691.23/4,039.00 = 2,479.55/x
  3. Step 3: Cross multiply
    2,691.23x = 4,039.00 × 2,479.55
  4. Step 4: Simplify right side
    2,691.23x = 10,014,876.06
  5. Step 5: Solve for x
    x = 10,014,876.06/2,691.23
  6. Step 6: Final answer
    x = 3,721.31

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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.