Home / 3,031.24-4,538.94-1,987.96

Finding the Fourth Proportional to 3,031.24, 4,538.94 and 1,987.96

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Solution

The fourth proportional to 3,031.24, 4,538.94 and 1,987.96 is: 2,976.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.24 : 4,538.94 = 1,987.96 : x
  2. Step 2: Convert to fraction form
    3,031.24/4,538.94 = 1,987.96/x
  3. Step 3: Cross multiply
    3,031.24x = 4,538.94 × 1,987.96
  4. Step 4: Simplify right side
    3,031.24x = 9,023,231.16
  5. Step 5: Solve for x
    x = 9,023,231.16/3,031.24
  6. Step 6: Final answer
    x = 2,976.75

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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.