Home / 1,469.28-2,205.60-1,228.32

Finding the Fourth Proportional to 1,469.28, 2,205.60 and 1,228.32

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Solution

The fourth proportional to 1,469.28, 2,205.60 and 1,228.32 is: 1,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.28 : 2,205.60 = 1,228.32 : x
  2. Step 2: Convert to fraction form
    1,469.28/2,205.60 = 1,228.32/x
  3. Step 3: Cross multiply
    1,469.28x = 2,205.60 × 1,228.32
  4. Step 4: Simplify right side
    1,469.28x = 2,709,182.59
  5. Step 5: Solve for x
    x = 2,709,182.59/1,469.28
  6. Step 6: Final answer
    x = 1,843.88

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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.