Home / 5,351.73-8,020.30-2,578.20

Finding the Fourth Proportional to 5,351.73, 8,020.30 and 2,578.20

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Solution

The fourth proportional to 5,351.73, 8,020.30 and 2,578.20 is: 3,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.73 : 8,020.30 = 2,578.20 : x
  2. Step 2: Convert to fraction form
    5,351.73/8,020.30 = 2,578.20/x
  3. Step 3: Cross multiply
    5,351.73x = 8,020.30 × 2,578.20
  4. Step 4: Simplify right side
    5,351.73x = 20,677,937.46
  5. Step 5: Solve for x
    x = 20,677,937.46/5,351.73
  6. Step 6: Final answer
    x = 3,863.79

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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.