Home / 5,122.72-7,684.80-2,002.16

Finding the Fourth Proportional to 5,122.72, 7,684.80 and 2,002.16

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Solution

The fourth proportional to 5,122.72, 7,684.80 and 2,002.16 is: 3,003.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.72 : 7,684.80 = 2,002.16 : x
  2. Step 2: Convert to fraction form
    5,122.72/7,684.80 = 2,002.16/x
  3. Step 3: Cross multiply
    5,122.72x = 7,684.80 × 2,002.16
  4. Step 4: Simplify right side
    5,122.72x = 15,386,199.17
  5. Step 5: Solve for x
    x = 15,386,199.17/5,122.72
  6. Step 6: Final answer
    x = 3,003.52

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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.