Home / 2,605.12-3,904.92-1,143.88

Finding the Fourth Proportional to 2,605.12, 3,904.92 and 1,143.88

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Solution

The fourth proportional to 2,605.12, 3,904.92 and 1,143.88 is: 1,714.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.12 : 3,904.92 = 1,143.88 : x
  2. Step 2: Convert to fraction form
    2,605.12/3,904.92 = 1,143.88/x
  3. Step 3: Cross multiply
    2,605.12x = 3,904.92 × 1,143.88
  4. Step 4: Simplify right side
    2,605.12x = 4,466,759.89
  5. Step 5: Solve for x
    x = 4,466,759.89/2,605.12
  6. Step 6: Final answer
    x = 1,714.61

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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.