Home / 3,200.97-4,803.28-1,121.42

Finding the Fourth Proportional to 3,200.97, 4,803.28 and 1,121.42

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Solution

The fourth proportional to 3,200.97, 4,803.28 and 1,121.42 is: 1,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.97 : 4,803.28 = 1,121.42 : x
  2. Step 2: Convert to fraction form
    3,200.97/4,803.28 = 1,121.42/x
  3. Step 3: Cross multiply
    3,200.97x = 4,803.28 × 1,121.42
  4. Step 4: Simplify right side
    3,200.97x = 5,386,503.46
  5. Step 5: Solve for x
    x = 5,386,503.46/3,200.97
  6. Step 6: Final answer
    x = 1,682.77

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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.