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Finding the Fourth Proportional to 2,332.25, 3,498.39 and 872.09

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Solution

The fourth proportional to 2,332.25, 3,498.39 and 872.09 is: 1,308.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,332.25 : 3,498.39 = 872.09 : x
  2. Step 2: Convert to fraction form
    2,332.25/3,498.39 = 872.09/x
  3. Step 3: Cross multiply
    2,332.25x = 3,498.39 × 872.09
  4. Step 4: Simplify right side
    2,332.25x = 3,050,910.94
  5. Step 5: Solve for x
    x = 3,050,910.94/2,332.25
  6. Step 6: Final answer
    x = 1,308.14

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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.