Home / 2,515.54-3,471.62-1,520.86

Finding the Fourth Proportional to 2,515.54, 3,471.62 and 1,520.86

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Solution

The fourth proportional to 2,515.54, 3,471.62 and 1,520.86 is: 2,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.54 : 3,471.62 = 1,520.86 : x
  2. Step 2: Convert to fraction form
    2,515.54/3,471.62 = 1,520.86/x
  3. Step 3: Cross multiply
    2,515.54x = 3,471.62 × 1,520.86
  4. Step 4: Simplify right side
    2,515.54x = 5,279,847.99
  5. Step 5: Solve for x
    x = 5,279,847.99/2,515.54
  6. Step 6: Final answer
    x = 2,098.89

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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.