Home / 3,489.57-4,811.56-2,648.18

Finding the Fourth Proportional to 3,489.57, 4,811.56 and 2,648.18

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Solution

The fourth proportional to 3,489.57, 4,811.56 and 2,648.18 is: 3,651.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.57 : 4,811.56 = 2,648.18 : x
  2. Step 2: Convert to fraction form
    3,489.57/4,811.56 = 2,648.18/x
  3. Step 3: Cross multiply
    3,489.57x = 4,811.56 × 2,648.18
  4. Step 4: Simplify right side
    3,489.57x = 12,741,876.96
  5. Step 5: Solve for x
    x = 12,741,876.96/3,489.57
  6. Step 6: Final answer
    x = 3,651.42

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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.