Home / 5,288.78-7,934.40-2,822.30

Finding the Fourth Proportional to 5,288.78, 7,934.40 and 2,822.30

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Solution

The fourth proportional to 5,288.78, 7,934.40 and 2,822.30 is: 4,234.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.78 : 7,934.40 = 2,822.30 : x
  2. Step 2: Convert to fraction form
    5,288.78/7,934.40 = 2,822.30/x
  3. Step 3: Cross multiply
    5,288.78x = 7,934.40 × 2,822.30
  4. Step 4: Simplify right side
    5,288.78x = 22,393,257.12
  5. Step 5: Solve for x
    x = 22,393,257.12/5,288.78
  6. Step 6: Final answer
    x = 4,234.11

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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.