Home / 4,821.30-7,230.84-2,221.74

Finding the Fourth Proportional to 4,821.30, 7,230.84 and 2,221.74

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Solution

The fourth proportional to 4,821.30, 7,230.84 and 2,221.74 is: 3,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.30 : 7,230.84 = 2,221.74 : x
  2. Step 2: Convert to fraction form
    4,821.30/7,230.84 = 2,221.74/x
  3. Step 3: Cross multiply
    4,821.30x = 7,230.84 × 2,221.74
  4. Step 4: Simplify right side
    4,821.30x = 16,065,046.46
  5. Step 5: Solve for x
    x = 16,065,046.46/4,821.30
  6. Step 6: Final answer
    x = 3,332.10

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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.