Home / 3,169.78-4,752.10-1,322.28

Finding the Fourth Proportional to 3,169.78, 4,752.10 and 1,322.28

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Solution

The fourth proportional to 3,169.78, 4,752.10 and 1,322.28 is: 1,982.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.78 : 4,752.10 = 1,322.28 : x
  2. Step 2: Convert to fraction form
    3,169.78/4,752.10 = 1,322.28/x
  3. Step 3: Cross multiply
    3,169.78x = 4,752.10 × 1,322.28
  4. Step 4: Simplify right side
    3,169.78x = 6,283,576.42
  5. Step 5: Solve for x
    x = 6,283,576.42/3,169.78
  6. Step 6: Final answer
    x = 1,982.34

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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.