Home / 3,281.16-4,920.50-1,332.70

Finding the Fourth Proportional to 3,281.16, 4,920.50 and 1,332.70

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Solution

The fourth proportional to 3,281.16, 4,920.50 and 1,332.70 is: 1,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.16 : 4,920.50 = 1,332.70 : x
  2. Step 2: Convert to fraction form
    3,281.16/4,920.50 = 1,332.70/x
  3. Step 3: Cross multiply
    3,281.16x = 4,920.50 × 1,332.70
  4. Step 4: Simplify right side
    3,281.16x = 6,557,550.35
  5. Step 5: Solve for x
    x = 6,557,550.35/3,281.16
  6. Step 6: Final answer
    x = 1,998.55

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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.