Home / 4,138.61-5,711.87-2,567.21

Finding the Fourth Proportional to 4,138.61, 5,711.87 and 2,567.21

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Solution

The fourth proportional to 4,138.61, 5,711.87 and 2,567.21 is: 3,543.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.61 : 5,711.87 = 2,567.21 : x
  2. Step 2: Convert to fraction form
    4,138.61/5,711.87 = 2,567.21/x
  3. Step 3: Cross multiply
    4,138.61x = 5,711.87 × 2,567.21
  4. Step 4: Simplify right side
    4,138.61x = 14,663,556.95
  5. Step 5: Solve for x
    x = 14,663,556.95/4,138.61
  6. Step 6: Final answer
    x = 3,543.11

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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.