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Finding the Fourth Proportional to 2,549.70, 3,824.55 and 2,117.70

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Solution

The fourth proportional to 2,549.70, 3,824.55 and 2,117.70 is: 3,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,549.70 : 3,824.55 = 2,117.70 : x
  2. Step 2: Convert to fraction form
    2,549.70/3,824.55 = 2,117.70/x
  3. Step 3: Cross multiply
    2,549.70x = 3,824.55 × 2,117.70
  4. Step 4: Simplify right side
    2,549.70x = 8,099,249.54
  5. Step 5: Solve for x
    x = 8,099,249.54/2,549.70
  6. Step 6: Final answer
    x = 3,176.55

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Similar ratio
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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.