Home / 2,589.78-3,883.44-1,108.92

Finding the Fourth Proportional to 2,589.78, 3,883.44 and 1,108.92

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Solution

The fourth proportional to 2,589.78, 3,883.44 and 1,108.92 is: 1,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.78 : 3,883.44 = 1,108.92 : x
  2. Step 2: Convert to fraction form
    2,589.78/3,883.44 = 1,108.92/x
  3. Step 3: Cross multiply
    2,589.78x = 3,883.44 × 1,108.92
  4. Step 4: Simplify right side
    2,589.78x = 4,306,424.28
  5. Step 5: Solve for x
    x = 4,306,424.28/2,589.78
  6. Step 6: Final answer
    x = 1,662.85

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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.