Home / 4,415.92-6,613.78-2,109.04

Finding the Fourth Proportional to 4,415.92, 6,613.78 and 2,109.04

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Solution

The fourth proportional to 4,415.92, 6,613.78 and 2,109.04 is: 3,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.92 : 6,613.78 = 2,109.04 : x
  2. Step 2: Convert to fraction form
    4,415.92/6,613.78 = 2,109.04/x
  3. Step 3: Cross multiply
    4,415.92x = 6,613.78 × 2,109.04
  4. Step 4: Simplify right side
    4,415.92x = 13,948,726.57
  5. Step 5: Solve for x
    x = 13,948,726.57/4,415.92
  6. Step 6: Final answer
    x = 3,158.74

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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.