Home / 8,826.45-13,231.44-2,978.97

Finding the Fourth Proportional to 8,826.45, 13,231.44 and 2,978.97

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Solution

The fourth proportional to 8,826.45, 13,231.44 and 2,978.97 is: 4,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,826.45 : 13,231.44 = 2,978.97 : x
  2. Step 2: Convert to fraction form
    8,826.45/13,231.44 = 2,978.97/x
  3. Step 3: Cross multiply
    8,826.45x = 13,231.44 × 2,978.97
  4. Step 4: Simplify right side
    8,826.45x = 39,416,062.82
  5. Step 5: Solve for x
    x = 39,416,062.82/8,826.45
  6. Step 6: Final answer
    x = 4,465.68

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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.