Home / 2,220.26-3,063.82-1,225.50

Finding the Fourth Proportional to 2,220.26, 3,063.82 and 1,225.50

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Solution

The fourth proportional to 2,220.26, 3,063.82 and 1,225.50 is: 1,691.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.26 : 3,063.82 = 1,225.50 : x
  2. Step 2: Convert to fraction form
    2,220.26/3,063.82 = 1,225.50/x
  3. Step 3: Cross multiply
    2,220.26x = 3,063.82 × 1,225.50
  4. Step 4: Simplify right side
    2,220.26x = 3,754,711.41
  5. Step 5: Solve for x
    x = 3,754,711.41/2,220.26
  6. Step 6: Final answer
    x = 1,691.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.