Home / 3,243.40-4,865.28-1,022.55

Finding the Fourth Proportional to 3,243.40, 4,865.28 and 1,022.55

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Solution

The fourth proportional to 3,243.40, 4,865.28 and 1,022.55 is: 1,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.40 : 4,865.28 = 1,022.55 : x
  2. Step 2: Convert to fraction form
    3,243.40/4,865.28 = 1,022.55/x
  3. Step 3: Cross multiply
    3,243.40x = 4,865.28 × 1,022.55
  4. Step 4: Simplify right side
    3,243.40x = 4,974,992.06
  5. Step 5: Solve for x
    x = 4,974,992.06/3,243.40
  6. Step 6: Final answer
    x = 1,533.88

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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.