Home / 3,948.26-5,449.75-2,455.43

Finding the Fourth Proportional to 3,948.26, 5,449.75 and 2,455.43

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Solution

The fourth proportional to 3,948.26, 5,449.75 and 2,455.43 is: 3,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.26 : 5,449.75 = 2,455.43 : x
  2. Step 2: Convert to fraction form
    3,948.26/5,449.75 = 2,455.43/x
  3. Step 3: Cross multiply
    3,948.26x = 5,449.75 × 2,455.43
  4. Step 4: Simplify right side
    3,948.26x = 13,381,446.26
  5. Step 5: Solve for x
    x = 13,381,446.26/3,948.26
  6. Step 6: Final answer
    x = 3,389.21

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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.