Home / 7,822.10-11,732.42-2,628.02

Finding the Fourth Proportional to 7,822.10, 11,732.42 and 2,628.02

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Solution

The fourth proportional to 7,822.10, 11,732.42 and 2,628.02 is: 3,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.10 : 11,732.42 = 2,628.02 : x
  2. Step 2: Convert to fraction form
    7,822.10/11,732.42 = 2,628.02/x
  3. Step 3: Cross multiply
    7,822.10x = 11,732.42 × 2,628.02
  4. Step 4: Simplify right side
    7,822.10x = 30,833,034.41
  5. Step 5: Solve for x
    x = 30,833,034.41/7,822.10
  6. Step 6: Final answer
    x = 3,941.78

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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.