Home / 2,196.64-3,292.80-1,220.73

Finding the Fourth Proportional to 2,196.64, 3,292.80 and 1,220.73

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Solution

The fourth proportional to 2,196.64, 3,292.80 and 1,220.73 is: 1,829.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196.64 : 3,292.80 = 1,220.73 : x
  2. Step 2: Convert to fraction form
    2,196.64/3,292.80 = 1,220.73/x
  3. Step 3: Cross multiply
    2,196.64x = 3,292.80 × 1,220.73
  4. Step 4: Simplify right side
    2,196.64x = 4,019,619.74
  5. Step 5: Solve for x
    x = 4,019,619.74/2,196.64
  6. Step 6: Final answer
    x = 1,829.89

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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.