Home / 5,191.75-7,789.91-2,726.00

Finding the Fourth Proportional to 5,191.75, 7,789.91 and 2,726.00

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Solution

The fourth proportional to 5,191.75, 7,789.91 and 2,726.00 is: 4,090.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.75 : 7,789.91 = 2,726.00 : x
  2. Step 2: Convert to fraction form
    5,191.75/7,789.91 = 2,726.00/x
  3. Step 3: Cross multiply
    5,191.75x = 7,789.91 × 2,726.00
  4. Step 4: Simplify right side
    5,191.75x = 21,235,242.08
  5. Step 5: Solve for x
    x = 21,235,242.08/5,191.75
  6. Step 6: Final answer
    x = 4,090.19

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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.