Home / 5,122.20-7,683.40-2,002.08

Finding the Fourth Proportional to 5,122.20, 7,683.40 and 2,002.08

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Solution

The fourth proportional to 5,122.20, 7,683.40 and 2,002.08 is: 3,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.20 : 7,683.40 = 2,002.08 : x
  2. Step 2: Convert to fraction form
    5,122.20/7,683.40 = 2,002.08/x
  3. Step 3: Cross multiply
    5,122.20x = 7,683.40 × 2,002.08
  4. Step 4: Simplify right side
    5,122.20x = 15,382,781.47
  5. Step 5: Solve for x
    x = 15,382,781.47/5,122.20
  6. Step 6: Final answer
    x = 3,003.16

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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.