Home / 2,589.30-3,883.40-739.92

Finding the Fourth Proportional to 2,589.30, 3,883.40 and 739.92

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Solution

The fourth proportional to 2,589.30, 3,883.40 and 739.92 is: 1,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.30 : 3,883.40 = 739.92 : x
  2. Step 2: Convert to fraction form
    2,589.30/3,883.40 = 739.92/x
  3. Step 3: Cross multiply
    2,589.30x = 3,883.40 × 739.92
  4. Step 4: Simplify right side
    2,589.30x = 2,873,405.33
  5. Step 5: Solve for x
    x = 2,873,405.33/2,589.30
  6. Step 6: Final answer
    x = 1,109.72

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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.