Home / 3,997.50-5,517.26-2,506.70

Finding the Fourth Proportional to 3,997.50, 5,517.26 and 2,506.70

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Solution

The fourth proportional to 3,997.50, 5,517.26 and 2,506.70 is: 3,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.50 : 5,517.26 = 2,506.70 : x
  2. Step 2: Convert to fraction form
    3,997.50/5,517.26 = 2,506.70/x
  3. Step 3: Cross multiply
    3,997.50x = 5,517.26 × 2,506.70
  4. Step 4: Simplify right side
    3,997.50x = 13,830,115.64
  5. Step 5: Solve for x
    x = 13,830,115.64/3,997.50
  6. Step 6: Final answer
    x = 3,459.69

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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.