Home / 3,320.80-4,976.58-3,221.02

Finding the Fourth Proportional to 3,320.80, 4,976.58 and 3,221.02

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Solution

The fourth proportional to 3,320.80, 4,976.58 and 3,221.02 is: 4,827.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.80 : 4,976.58 = 3,221.02 : x
  2. Step 2: Convert to fraction form
    3,320.80/4,976.58 = 3,221.02/x
  3. Step 3: Cross multiply
    3,320.80x = 4,976.58 × 3,221.02
  4. Step 4: Simplify right side
    3,320.80x = 16,029,663.71
  5. Step 5: Solve for x
    x = 16,029,663.71/3,320.80
  6. Step 6: Final answer
    x = 4,827.05

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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.