Home / 3,264-4,505.28-2,021.76

Finding the Fourth Proportional to 3,264, 4,505.28 and 2,021.76

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Solution

The fourth proportional to 3,264, 4,505.28 and 2,021.76 is: 2,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264 : 4,505.28 = 2,021.76 : x
  2. Step 2: Convert to fraction form
    3,264/4,505.28 = 2,021.76/x
  3. Step 3: Cross multiply
    3,264x = 4,505.28 × 2,021.76
  4. Step 4: Simplify right side
    3,264x = 9,108,594.89
  5. Step 5: Solve for x
    x = 9,108,594.89/3,264
  6. Step 6: Final answer
    x = 2,790.62

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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.