Home / 7,881.17-11,819.52-2,333.21

Finding the Fourth Proportional to 7,881.17, 11,819.52 and 2,333.21

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Solution

The fourth proportional to 7,881.17, 11,819.52 and 2,333.21 is: 3,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.17 : 11,819.52 = 2,333.21 : x
  2. Step 2: Convert to fraction form
    7,881.17/11,819.52 = 2,333.21/x
  3. Step 3: Cross multiply
    7,881.17x = 11,819.52 × 2,333.21
  4. Step 4: Simplify right side
    7,881.17x = 27,577,363.16
  5. Step 5: Solve for x
    x = 27,577,363.16/7,881.17
  6. Step 6: Final answer
    x = 3,499.15

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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.