Home / 2,479.78-3,414.58-2,425.11

Finding the Fourth Proportional to 2,479.78, 3,414.58 and 2,425.11

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Solution

The fourth proportional to 2,479.78, 3,414.58 and 2,425.11 is: 3,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.78 : 3,414.58 = 2,425.11 : x
  2. Step 2: Convert to fraction form
    2,479.78/3,414.58 = 2,425.11/x
  3. Step 3: Cross multiply
    2,479.78x = 3,414.58 × 2,425.11
  4. Step 4: Simplify right side
    2,479.78x = 8,280,732.10
  5. Step 5: Solve for x
    x = 8,280,732.10/2,479.78
  6. Step 6: Final answer
    x = 3,339.30

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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.