Home / 3,999.70-5,517.88-2,507.14

Finding the Fourth Proportional to 3,999.70, 5,517.88 and 2,507.14

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Solution

The fourth proportional to 3,999.70, 5,517.88 and 2,507.14 is: 3,458.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.70 : 5,517.88 = 2,507.14 : x
  2. Step 2: Convert to fraction form
    3,999.70/5,517.88 = 2,507.14/x
  3. Step 3: Cross multiply
    3,999.70x = 5,517.88 × 2,507.14
  4. Step 4: Simplify right side
    3,999.70x = 13,834,097.66
  5. Step 5: Solve for x
    x = 13,834,097.66/3,999.70
  6. Step 6: Final answer
    x = 3,458.78

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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.