Home / 5,679.30-7,837.26-3,161.28

Finding the Fourth Proportional to 5,679.30, 7,837.26 and 3,161.28

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Solution

The fourth proportional to 5,679.30, 7,837.26 and 3,161.28 is: 4,362.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.30 : 7,837.26 = 3,161.28 : x
  2. Step 2: Convert to fraction form
    5,679.30/7,837.26 = 3,161.28/x
  3. Step 3: Cross multiply
    5,679.30x = 7,837.26 × 3,161.28
  4. Step 4: Simplify right side
    5,679.30x = 24,775,773.29
  5. Step 5: Solve for x
    x = 24,775,773.29/5,679.30
  6. Step 6: Final answer
    x = 4,362.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.