Home / 2,186.72-3,017.60-1,255.04

Finding the Fourth Proportional to 2,186.72, 3,017.60 and 1,255.04

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Solution

The fourth proportional to 2,186.72, 3,017.60 and 1,255.04 is: 1,731.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.72 : 3,017.60 = 1,255.04 : x
  2. Step 2: Convert to fraction form
    2,186.72/3,017.60 = 1,255.04/x
  3. Step 3: Cross multiply
    2,186.72x = 3,017.60 × 1,255.04
  4. Step 4: Simplify right side
    2,186.72x = 3,787,208.70
  5. Step 5: Solve for x
    x = 3,787,208.70/2,186.72
  6. Step 6: Final answer
    x = 1,731.91

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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.