Home / 3,244.70-4,871.55-2,081.90

Finding the Fourth Proportional to 3,244.70, 4,871.55 and 2,081.90

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Solution

The fourth proportional to 3,244.70, 4,871.55 and 2,081.90 is: 3,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,244.70 : 4,871.55 = 2,081.90 : x
  2. Step 2: Convert to fraction form
    3,244.70/4,871.55 = 2,081.90/x
  3. Step 3: Cross multiply
    3,244.70x = 4,871.55 × 2,081.90
  4. Step 4: Simplify right side
    3,244.70x = 10,142,079.95
  5. Step 5: Solve for x
    x = 10,142,079.95/3,244.70
  6. Step 6: Final answer
    x = 3,125.74

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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.