Home / 1,872.78-2,584.08-1,173.75

Finding the Fourth Proportional to 1,872.78, 2,584.08 and 1,173.75

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Solution

The fourth proportional to 1,872.78, 2,584.08 and 1,173.75 is: 1,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.78 : 2,584.08 = 1,173.75 : x
  2. Step 2: Convert to fraction form
    1,872.78/2,584.08 = 1,173.75/x
  3. Step 3: Cross multiply
    1,872.78x = 2,584.08 × 1,173.75
  4. Step 4: Simplify right side
    1,872.78x = 3,033,063.90
  5. Step 5: Solve for x
    x = 3,033,063.90/1,872.78
  6. Step 6: Final answer
    x = 1,619.55

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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.