Home / 2,525.91-3,781.87-1,290.66

Finding the Fourth Proportional to 2,525.91, 3,781.87 and 1,290.66

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Solution

The fourth proportional to 2,525.91, 3,781.87 and 1,290.66 is: 1,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.91 : 3,781.87 = 1,290.66 : x
  2. Step 2: Convert to fraction form
    2,525.91/3,781.87 = 1,290.66/x
  3. Step 3: Cross multiply
    2,525.91x = 3,781.87 × 1,290.66
  4. Step 4: Simplify right side
    2,525.91x = 4,881,108.33
  5. Step 5: Solve for x
    x = 4,881,108.33/2,525.91
  6. Step 6: Final answer
    x = 1,932.42

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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.