Home / 2,515.48-3,471.50-1,520.75

Finding the Fourth Proportional to 2,515.48, 3,471.50 and 1,520.75

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Solution

The fourth proportional to 2,515.48, 3,471.50 and 1,520.75 is: 2,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.48 : 3,471.50 = 1,520.75 : x
  2. Step 2: Convert to fraction form
    2,515.48/3,471.50 = 1,520.75/x
  3. Step 3: Cross multiply
    2,515.48x = 3,471.50 × 1,520.75
  4. Step 4: Simplify right side
    2,515.48x = 5,279,296.11
  5. Step 5: Solve for x
    x = 5,279,296.11/2,515.48
  6. Step 6: Final answer
    x = 2,098.73

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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.