Home / 3,981.86-5,972.77-1,020.29

Finding the Fourth Proportional to 3,981.86, 5,972.77 and 1,020.29

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Solution

The fourth proportional to 3,981.86, 5,972.77 and 1,020.29 is: 1,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.86 : 5,972.77 = 1,020.29 : x
  2. Step 2: Convert to fraction form
    3,981.86/5,972.77 = 1,020.29/x
  3. Step 3: Cross multiply
    3,981.86x = 5,972.77 × 1,020.29
  4. Step 4: Simplify right side
    3,981.86x = 6,093,969.88
  5. Step 5: Solve for x
    x = 6,093,969.88/3,981.86
  6. Step 6: Final answer
    x = 1,530.43

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Similar ratio
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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.