Home / 4,987.26-6,882.30-2,891.25

Finding the Fourth Proportional to 4,987.26, 6,882.30 and 2,891.25

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Solution

The fourth proportional to 4,987.26, 6,882.30 and 2,891.25 is: 3,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.26 : 6,882.30 = 2,891.25 : x
  2. Step 2: Convert to fraction form
    4,987.26/6,882.30 = 2,891.25/x
  3. Step 3: Cross multiply
    4,987.26x = 6,882.30 × 2,891.25
  4. Step 4: Simplify right side
    4,987.26x = 19,898,449.88
  5. Step 5: Solve for x
    x = 19,898,449.88/4,987.26
  6. Step 6: Final answer
    x = 3,989.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.