Home / 5,318.98-7,340.19-2,961.68

Finding the Fourth Proportional to 5,318.98, 7,340.19 and 2,961.68

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Solution

The fourth proportional to 5,318.98, 7,340.19 and 2,961.68 is: 4,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.98 : 7,340.19 = 2,961.68 : x
  2. Step 2: Convert to fraction form
    5,318.98/7,340.19 = 2,961.68/x
  3. Step 3: Cross multiply
    5,318.98x = 7,340.19 × 2,961.68
  4. Step 4: Simplify right side
    5,318.98x = 21,739,257.22
  5. Step 5: Solve for x
    x = 21,739,257.22/5,318.98
  6. Step 6: Final answer
    x = 4,087.11

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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.