Home / 3,899.26-5,374.92-2,902.96

Finding the Fourth Proportional to 3,899.26, 5,374.92 and 2,902.96

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Solution

The fourth proportional to 3,899.26, 5,374.92 and 2,902.96 is: 4,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.26 : 5,374.92 = 2,902.96 : x
  2. Step 2: Convert to fraction form
    3,899.26/5,374.92 = 2,902.96/x
  3. Step 3: Cross multiply
    3,899.26x = 5,374.92 × 2,902.96
  4. Step 4: Simplify right side
    3,899.26x = 15,603,177.76
  5. Step 5: Solve for x
    x = 15,603,177.76/3,899.26
  6. Step 6: Final answer
    x = 4,001.57

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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.