Home / 3,680.68-5,079.36-2,002.09

Finding the Fourth Proportional to 3,680.68, 5,079.36 and 2,002.09

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Solution

The fourth proportional to 3,680.68, 5,079.36 and 2,002.09 is: 2,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.68 : 5,079.36 = 2,002.09 : x
  2. Step 2: Convert to fraction form
    3,680.68/5,079.36 = 2,002.09/x
  3. Step 3: Cross multiply
    3,680.68x = 5,079.36 × 2,002.09
  4. Step 4: Simplify right side
    3,680.68x = 10,169,335.86
  5. Step 5: Solve for x
    x = 10,169,335.86/3,680.68
  6. Step 6: Final answer
    x = 2,762.90

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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.