Home / 2,008.20-3,012.30-547.30

Finding the Fourth Proportional to 2,008.20, 3,012.30 and 547.30

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Solution

The fourth proportional to 2,008.20, 3,012.30 and 547.30 is: 820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.20 : 3,012.30 = 547.30 : x
  2. Step 2: Convert to fraction form
    2,008.20/3,012.30 = 547.30/x
  3. Step 3: Cross multiply
    2,008.20x = 3,012.30 × 547.30
  4. Step 4: Simplify right side
    2,008.20x = 1,648,631.79
  5. Step 5: Solve for x
    x = 1,648,631.79/2,008.20
  6. Step 6: Final answer
    x = 820.95

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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.