Home / 2,616.60-3,916.80-1,517.70

Finding the Fourth Proportional to 2,616.60, 3,916.80 and 1,517.70

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Solution

The fourth proportional to 2,616.60, 3,916.80 and 1,517.70 is: 2,271.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.60 : 3,916.80 = 1,517.70 : x
  2. Step 2: Convert to fraction form
    2,616.60/3,916.80 = 1,517.70/x
  3. Step 3: Cross multiply
    2,616.60x = 3,916.80 × 1,517.70
  4. Step 4: Simplify right side
    2,616.60x = 5,944,527.36
  5. Step 5: Solve for x
    x = 5,944,527.36/2,616.60
  6. Step 6: Final answer
    x = 2,271.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.