Home / 3,948.75-5,449.28-2,377.15

Finding the Fourth Proportional to 3,948.75, 5,449.28 and 2,377.15

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Solution

The fourth proportional to 3,948.75, 5,449.28 and 2,377.15 is: 3,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.75 : 5,449.28 = 2,377.15 : x
  2. Step 2: Convert to fraction form
    3,948.75/5,449.28 = 2,377.15/x
  3. Step 3: Cross multiply
    3,948.75x = 5,449.28 × 2,377.15
  4. Step 4: Simplify right side
    3,948.75x = 12,953,730.44
  5. Step 5: Solve for x
    x = 12,953,730.44/3,948.75
  6. Step 6: Final answer
    x = 3,280.46

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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.