Home / 2,818.75-4,220.56-2,296.61

Finding the Fourth Proportional to 2,818.75, 4,220.56 and 2,296.61

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Solution

The fourth proportional to 2,818.75, 4,220.56 and 2,296.61 is: 3,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.75 : 4,220.56 = 2,296.61 : x
  2. Step 2: Convert to fraction form
    2,818.75/4,220.56 = 2,296.61/x
  3. Step 3: Cross multiply
    2,818.75x = 4,220.56 × 2,296.61
  4. Step 4: Simplify right side
    2,818.75x = 9,692,968.82
  5. Step 5: Solve for x
    x = 9,692,968.82/2,818.75
  6. Step 6: Final answer
    x = 3,438.75

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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.