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Finding the Fourth Proportional to 3,332.80, 4,998.76 and 867.80

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Solution

The fourth proportional to 3,332.80, 4,998.76 and 867.80 is: 1,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332.80 : 4,998.76 = 867.80 : x
  2. Step 2: Convert to fraction form
    3,332.80/4,998.76 = 867.80/x
  3. Step 3: Cross multiply
    3,332.80x = 4,998.76 × 867.80
  4. Step 4: Simplify right side
    3,332.80x = 4,337,923.93
  5. Step 5: Solve for x
    x = 4,337,923.93/3,332.80
  6. Step 6: Final answer
    x = 1,301.59

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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.