Home / 3,552.24-4,901.46-1,980

Finding the Fourth Proportional to 3,552.24, 4,901.46 and 1,980

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Solution

The fourth proportional to 3,552.24, 4,901.46 and 1,980 is: 2,732.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552.24 : 4,901.46 = 1,980 : x
  2. Step 2: Convert to fraction form
    3,552.24/4,901.46 = 1,980/x
  3. Step 3: Cross multiply
    3,552.24x = 4,901.46 × 1,980
  4. Step 4: Simplify right side
    3,552.24x = 9,704,890.80
  5. Step 5: Solve for x
    x = 9,704,890.80/3,552.24
  6. Step 6: Final answer
    x = 2,732.05

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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.