Home / 1,515.27-2,268.49-1,151.49

Finding the Fourth Proportional to 1,515.27, 2,268.49 and 1,151.49

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Solution

The fourth proportional to 1,515.27, 2,268.49 and 1,151.49 is: 1,723.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.27 : 2,268.49 = 1,151.49 : x
  2. Step 2: Convert to fraction form
    1,515.27/2,268.49 = 1,151.49/x
  3. Step 3: Cross multiply
    1,515.27x = 2,268.49 × 1,151.49
  4. Step 4: Simplify right side
    1,515.27x = 2,612,143.55
  5. Step 5: Solve for x
    x = 2,612,143.55/1,515.27
  6. Step 6: Final answer
    x = 1,723.88

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1.5x scale

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.