Home / 1,589.22-2,378.84-1,100.79

Finding the Fourth Proportional to 1,589.22, 2,378.84 and 1,100.79

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Solution

The fourth proportional to 1,589.22, 2,378.84 and 1,100.79 is: 1,647.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.22 : 2,378.84 = 1,100.79 : x
  2. Step 2: Convert to fraction form
    1,589.22/2,378.84 = 1,100.79/x
  3. Step 3: Cross multiply
    1,589.22x = 2,378.84 × 1,100.79
  4. Step 4: Simplify right side
    1,589.22x = 2,618,597.78
  5. Step 5: Solve for x
    x = 2,618,597.78/1,589.22
  6. Step 6: Final answer
    x = 1,647.73

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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.