Home / 3,031.25-4,542-2,545.25

Finding the Fourth Proportional to 3,031.25, 4,542 and 2,545.25

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Solution

The fourth proportional to 3,031.25, 4,542 and 2,545.25 is: 3,813.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.25 : 4,542 = 2,545.25 : x
  2. Step 2: Convert to fraction form
    3,031.25/4,542 = 2,545.25/x
  3. Step 3: Cross multiply
    3,031.25x = 4,542 × 2,545.25
  4. Step 4: Simplify right side
    3,031.25x = 11,560,502.79
  5. Step 5: Solve for x
    x = 11,560,502.79/3,031.25
  6. Step 6: Final answer
    x = 3,813.78

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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.