Home / 5,275.98-7,918.29-2,679.66

Finding the Fourth Proportional to 5,275.98, 7,918.29 and 2,679.66

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Solution

The fourth proportional to 5,275.98, 7,918.29 and 2,679.66 is: 4,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.98 : 7,918.29 = 2,679.66 : x
  2. Step 2: Convert to fraction form
    5,275.98/7,918.29 = 2,679.66/x
  3. Step 3: Cross multiply
    5,275.98x = 7,918.29 × 2,679.66
  4. Step 4: Simplify right side
    5,275.98x = 21,218,324.98
  5. Step 5: Solve for x
    x = 21,218,324.98/5,275.98
  6. Step 6: Final answer
    x = 4,021.68

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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.