Home / 7,750.40-11,618.75-2,819.17

Finding the Fourth Proportional to 7,750.40, 11,618.75 and 2,819.17

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Solution

The fourth proportional to 7,750.40, 11,618.75 and 2,819.17 is: 4,226.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.40 : 11,618.75 = 2,819.17 : x
  2. Step 2: Convert to fraction form
    7,750.40/11,618.75 = 2,819.17/x
  3. Step 3: Cross multiply
    7,750.40x = 11,618.75 × 2,819.17
  4. Step 4: Simplify right side
    7,750.40x = 32,755,253.01
  5. Step 5: Solve for x
    x = 32,755,253.01/7,750.40
  6. Step 6: Final answer
    x = 4,226.27

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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.