Home / 3,013.20-4,519.85-822.11

Finding the Fourth Proportional to 3,013.20, 4,519.85 and 822.11

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Solution

The fourth proportional to 3,013.20, 4,519.85 and 822.11 is: 1,233.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.20 : 4,519.85 = 822.11 : x
  2. Step 2: Convert to fraction form
    3,013.20/4,519.85 = 822.11/x
  3. Step 3: Cross multiply
    3,013.20x = 4,519.85 × 822.11
  4. Step 4: Simplify right side
    3,013.20x = 3,715,787.17
  5. Step 5: Solve for x
    x = 3,715,787.17/3,013.20
  6. Step 6: Final answer
    x = 1,233.17

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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.