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Finding the Fourth Proportional to 7,734.78, 11,602.17 and 2,187.39

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Solution

The fourth proportional to 7,734.78, 11,602.17 and 2,187.39 is: 3,281.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,734.78 : 11,602.17 = 2,187.39 : x
  2. Step 2: Convert to fraction form
    7,734.78/11,602.17 = 2,187.39/x
  3. Step 3: Cross multiply
    7,734.78x = 11,602.17 × 2,187.39
  4. Step 4: Simplify right side
    7,734.78x = 25,378,470.64
  5. Step 5: Solve for x
    x = 25,378,470.64/7,734.78
  6. Step 6: Final answer
    x = 3,281.09

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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.