Home / 2,071.27-3,106.45-1,191.92

Finding the Fourth Proportional to 2,071.27, 3,106.45 and 1,191.92

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Solution

The fourth proportional to 2,071.27, 3,106.45 and 1,191.92 is: 1,787.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.27 : 3,106.45 = 1,191.92 : x
  2. Step 2: Convert to fraction form
    2,071.27/3,106.45 = 1,191.92/x
  3. Step 3: Cross multiply
    2,071.27x = 3,106.45 × 1,191.92
  4. Step 4: Simplify right side
    2,071.27x = 3,702,625.84
  5. Step 5: Solve for x
    x = 3,702,625.84/2,071.27
  6. Step 6: Final answer
    x = 1,787.61

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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.