Home / 1,673.28-2,512.35-1,235.88

Finding the Fourth Proportional to 1,673.28, 2,512.35 and 1,235.88

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Solution

The fourth proportional to 1,673.28, 2,512.35 and 1,235.88 is: 1,855.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.28 : 2,512.35 = 1,235.88 : x
  2. Step 2: Convert to fraction form
    1,673.28/2,512.35 = 1,235.88/x
  3. Step 3: Cross multiply
    1,673.28x = 2,512.35 × 1,235.88
  4. Step 4: Simplify right side
    1,673.28x = 3,104,963.12
  5. Step 5: Solve for x
    x = 3,104,963.12/1,673.28
  6. Step 6: Final answer
    x = 1,855.61

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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.