Home / 2,543.28-3,808.44-2,131.44

Finding the Fourth Proportional to 2,543.28, 3,808.44 and 2,131.44

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Solution

The fourth proportional to 2,543.28, 3,808.44 and 2,131.44 is: 3,191.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.28 : 3,808.44 = 2,131.44 : x
  2. Step 2: Convert to fraction form
    2,543.28/3,808.44 = 2,131.44/x
  3. Step 3: Cross multiply
    2,543.28x = 3,808.44 × 2,131.44
  4. Step 4: Simplify right side
    2,543.28x = 8,117,461.35
  5. Step 5: Solve for x
    x = 8,117,461.35/2,543.28
  6. Step 6: Final answer
    x = 3,191.73

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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.