Home / 2,515.56-3,471.51-1,520.66

Finding the Fourth Proportional to 2,515.56, 3,471.51 and 1,520.66

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Solution

The fourth proportional to 2,515.56, 3,471.51 and 1,520.66 is: 2,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.56 : 3,471.51 = 1,520.66 : x
  2. Step 2: Convert to fraction form
    2,515.56/3,471.51 = 1,520.66/x
  3. Step 3: Cross multiply
    2,515.56x = 3,471.51 × 1,520.66
  4. Step 4: Simplify right side
    2,515.56x = 5,278,992.22
  5. Step 5: Solve for x
    x = 5,278,992.22/2,515.56
  6. Step 6: Final answer
    x = 2,098.53

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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.