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Finding the Fourth Proportional to 3,984.91, 5,498.91 and 2,492.75

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Solution

The fourth proportional to 3,984.91, 5,498.91 and 2,492.75 is: 3,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.91 : 5,498.91 = 2,492.75 : x
  2. Step 2: Convert to fraction form
    3,984.91/5,498.91 = 2,492.75/x
  3. Step 3: Cross multiply
    3,984.91x = 5,498.91 × 2,492.75
  4. Step 4: Simplify right side
    3,984.91x = 13,707,407.90
  5. Step 5: Solve for x
    x = 13,707,407.90/3,984.91
  6. Step 6: Final answer
    x = 3,439.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.