Home / 7,864.18-11,796.90-2,020.75

Finding the Fourth Proportional to 7,864.18, 11,796.90 and 2,020.75

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Solution

The fourth proportional to 7,864.18, 11,796.90 and 2,020.75 is: 3,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.18 : 11,796.90 = 2,020.75 : x
  2. Step 2: Convert to fraction form
    7,864.18/11,796.90 = 2,020.75/x
  3. Step 3: Cross multiply
    7,864.18x = 11,796.90 × 2,020.75
  4. Step 4: Simplify right side
    7,864.18x = 23,838,585.68
  5. Step 5: Solve for x
    x = 23,838,585.68/7,864.18
  6. Step 6: Final answer
    x = 3,031.29

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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.