Home / 7,849.14-11,771.88-2,921.10

Finding the Fourth Proportional to 7,849.14, 11,771.88 and 2,921.10

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Solution

The fourth proportional to 7,849.14, 11,771.88 and 2,921.10 is: 4,380.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.14 : 11,771.88 = 2,921.10 : x
  2. Step 2: Convert to fraction form
    7,849.14/11,771.88 = 2,921.10/x
  3. Step 3: Cross multiply
    7,849.14x = 11,771.88 × 2,921.10
  4. Step 4: Simplify right side
    7,849.14x = 34,386,838.67
  5. Step 5: Solve for x
    x = 34,386,838.67/7,849.14
  6. Step 6: Final answer
    x = 4,380.97

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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.