Home / 2,566.40-3,843.84-1,987.52

Finding the Fourth Proportional to 2,566.40, 3,843.84 and 1,987.52

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Solution

The fourth proportional to 2,566.40, 3,843.84 and 1,987.52 is: 2,976.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.40 : 3,843.84 = 1,987.52 : x
  2. Step 2: Convert to fraction form
    2,566.40/3,843.84 = 1,987.52/x
  3. Step 3: Cross multiply
    2,566.40x = 3,843.84 × 1,987.52
  4. Step 4: Simplify right side
    2,566.40x = 7,639,708.88
  5. Step 5: Solve for x
    x = 7,639,708.88/2,566.40
  6. Step 6: Final answer
    x = 2,976.82

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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.