Home / 7,918.38-11,878.86-2,723.04

Finding the Fourth Proportional to 7,918.38, 11,878.86 and 2,723.04

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Solution

The fourth proportional to 7,918.38, 11,878.86 and 2,723.04 is: 4,085.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.38 : 11,878.86 = 2,723.04 : x
  2. Step 2: Convert to fraction form
    7,918.38/11,878.86 = 2,723.04/x
  3. Step 3: Cross multiply
    7,918.38x = 11,878.86 × 2,723.04
  4. Step 4: Simplify right side
    7,918.38x = 32,346,610.93
  5. Step 5: Solve for x
    x = 32,346,610.93/7,918.38
  6. Step 6: Final answer
    x = 4,085.00

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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.