Home / 3,896.12-5,375.10-2,479.43

Finding the Fourth Proportional to 3,896.12, 5,375.10 and 2,479.43

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Solution

The fourth proportional to 3,896.12, 5,375.10 and 2,479.43 is: 3,420.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.12 : 5,375.10 = 2,479.43 : x
  2. Step 2: Convert to fraction form
    3,896.12/5,375.10 = 2,479.43/x
  3. Step 3: Cross multiply
    3,896.12x = 5,375.10 × 2,479.43
  4. Step 4: Simplify right side
    3,896.12x = 13,327,184.19
  5. Step 5: Solve for x
    x = 13,327,184.19/3,896.12
  6. Step 6: Final answer
    x = 3,420.63

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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.