Home / 7,822.15-11,731.16-2,893.20

Finding the Fourth Proportional to 7,822.15, 11,731.16 and 2,893.20

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Solution

The fourth proportional to 7,822.15, 11,731.16 and 2,893.20 is: 4,339.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.15 : 11,731.16 = 2,893.20 : x
  2. Step 2: Convert to fraction form
    7,822.15/11,731.16 = 2,893.20/x
  3. Step 3: Cross multiply
    7,822.15x = 11,731.16 × 2,893.20
  4. Step 4: Simplify right side
    7,822.15x = 33,940,592.11
  5. Step 5: Solve for x
    x = 33,940,592.11/7,822.15
  6. Step 6: Final answer
    x = 4,339.04

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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.