Home / 5,144.61-7,720.92-2,680.05

Finding the Fourth Proportional to 5,144.61, 7,720.92 and 2,680.05

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Solution

The fourth proportional to 5,144.61, 7,720.92 and 2,680.05 is: 4,022.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.61 : 7,720.92 = 2,680.05 : x
  2. Step 2: Convert to fraction form
    5,144.61/7,720.92 = 2,680.05/x
  3. Step 3: Cross multiply
    5,144.61x = 7,720.92 × 2,680.05
  4. Step 4: Simplify right side
    5,144.61x = 20,692,451.65
  5. Step 5: Solve for x
    x = 20,692,451.65/5,144.61
  6. Step 6: Final answer
    x = 4,022.16

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1.5x scale

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.