Home / 3,552.24-5,328.80-1,821.28

Finding the Fourth Proportional to 3,552.24, 5,328.80 and 1,821.28

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Solution

The fourth proportional to 3,552.24, 5,328.80 and 1,821.28 is: 2,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552.24 : 5,328.80 = 1,821.28 : x
  2. Step 2: Convert to fraction form
    3,552.24/5,328.80 = 1,821.28/x
  3. Step 3: Cross multiply
    3,552.24x = 5,328.80 × 1,821.28
  4. Step 4: Simplify right side
    3,552.24x = 9,705,236.86
  5. Step 5: Solve for x
    x = 9,705,236.86/3,552.24
  6. Step 6: Final answer
    x = 2,732.15

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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.