Home / 1,481.28-2,044.32-984.64

Finding the Fourth Proportional to 1,481.28, 2,044.32 and 984.64

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Solution

The fourth proportional to 1,481.28, 2,044.32 and 984.64 is: 1,358.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.28 : 2,044.32 = 984.64 : x
  2. Step 2: Convert to fraction form
    1,481.28/2,044.32 = 984.64/x
  3. Step 3: Cross multiply
    1,481.28x = 2,044.32 × 984.64
  4. Step 4: Simplify right side
    1,481.28x = 2,012,919.24
  5. Step 5: Solve for x
    x = 2,012,919.24/1,481.28
  6. Step 6: Final answer
    x = 1,358.91

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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.