Home / 4,118.73-5,684.09-2,439.78

Finding the Fourth Proportional to 4,118.73, 5,684.09 and 2,439.78

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Solution

The fourth proportional to 4,118.73, 5,684.09 and 2,439.78 is: 3,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.73 : 5,684.09 = 2,439.78 : x
  2. Step 2: Convert to fraction form
    4,118.73/5,684.09 = 2,439.78/x
  3. Step 3: Cross multiply
    4,118.73x = 5,684.09 × 2,439.78
  4. Step 4: Simplify right side
    4,118.73x = 13,867,916.90
  5. Step 5: Solve for x
    x = 13,867,916.90/4,118.73
  6. Step 6: Final answer
    x = 3,367.04

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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.