Home / 5,240.12-7,231.84-3,002.72

Finding the Fourth Proportional to 5,240.12, 7,231.84 and 3,002.72

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Solution

The fourth proportional to 5,240.12, 7,231.84 and 3,002.72 is: 4,144.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.12 : 7,231.84 = 3,002.72 : x
  2. Step 2: Convert to fraction form
    5,240.12/7,231.84 = 3,002.72/x
  3. Step 3: Cross multiply
    5,240.12x = 7,231.84 × 3,002.72
  4. Step 4: Simplify right side
    5,240.12x = 21,715,146.94
  5. Step 5: Solve for x
    x = 21,715,146.94/5,240.12
  6. Step 6: Final answer
    x = 4,144.02

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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.