Home / 1,324.32-1,989.72-1,250.64

Finding the Fourth Proportional to 1,324.32, 1,989.72 and 1,250.64

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Solution

The fourth proportional to 1,324.32, 1,989.72 and 1,250.64 is: 1,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.32 : 1,989.72 = 1,250.64 : x
  2. Step 2: Convert to fraction form
    1,324.32/1,989.72 = 1,250.64/x
  3. Step 3: Cross multiply
    1,324.32x = 1,989.72 × 1,250.64
  4. Step 4: Simplify right side
    1,324.32x = 2,488,423.42
  5. Step 5: Solve for x
    x = 2,488,423.42/1,324.32
  6. Step 6: Final answer
    x = 1,879.02

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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.