Home / 2,614.60-3,913.80-1,515.70

Finding the Fourth Proportional to 2,614.60, 3,913.80 and 1,515.70

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Solution

The fourth proportional to 2,614.60, 3,913.80 and 1,515.70 is: 2,268.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,614.60 : 3,913.80 = 1,515.70 : x
  2. Step 2: Convert to fraction form
    2,614.60/3,913.80 = 1,515.70/x
  3. Step 3: Cross multiply
    2,614.60x = 3,913.80 × 1,515.70
  4. Step 4: Simplify right side
    2,614.60x = 5,932,146.66
  5. Step 5: Solve for x
    x = 5,932,146.66/2,614.60
  6. Step 6: Final answer
    x = 2,268.85

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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.