Home / 5,315.82-7,974.27-2,031.68

Finding the Fourth Proportional to 5,315.82, 7,974.27 and 2,031.68

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Solution

The fourth proportional to 5,315.82, 7,974.27 and 2,031.68 is: 3,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.82 : 7,974.27 = 2,031.68 : x
  2. Step 2: Convert to fraction form
    5,315.82/7,974.27 = 2,031.68/x
  3. Step 3: Cross multiply
    5,315.82x = 7,974.27 × 2,031.68
  4. Step 4: Simplify right side
    5,315.82x = 16,201,125.00
  5. Step 5: Solve for x
    x = 16,201,125.00/5,315.82
  6. Step 6: Final answer
    x = 3,047.72

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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.