Home / 2,207.85-3,043.86-1,891.75

Finding the Fourth Proportional to 2,207.85, 3,043.86 and 1,891.75

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Solution

The fourth proportional to 2,207.85, 3,043.86 and 1,891.75 is: 2,608.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.85 : 3,043.86 = 1,891.75 : x
  2. Step 2: Convert to fraction form
    2,207.85/3,043.86 = 1,891.75/x
  3. Step 3: Cross multiply
    2,207.85x = 3,043.86 × 1,891.75
  4. Step 4: Simplify right side
    2,207.85x = 5,758,222.16
  5. Step 5: Solve for x
    x = 5,758,222.16/2,207.85
  6. Step 6: Final answer
    x = 2,608.07

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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.