Home / 5,144.31-7,711.79-1,855.08

Finding the Fourth Proportional to 5,144.31, 7,711.79 and 1,855.08

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Solution

The fourth proportional to 5,144.31, 7,711.79 and 1,855.08 is: 2,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.31 : 7,711.79 = 1,855.08 : x
  2. Step 2: Convert to fraction form
    5,144.31/7,711.79 = 1,855.08/x
  3. Step 3: Cross multiply
    5,144.31x = 7,711.79 × 1,855.08
  4. Step 4: Simplify right side
    5,144.31x = 14,305,978.12
  5. Step 5: Solve for x
    x = 14,305,978.12/5,144.31
  6. Step 6: Final answer
    x = 2,780.93

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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.