Home / 2,112.23-2,911.41-1,691.84

Finding the Fourth Proportional to 2,112.23, 2,911.41 and 1,691.84

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Solution

The fourth proportional to 2,112.23, 2,911.41 and 1,691.84 is: 2,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.23 : 2,911.41 = 1,691.84 : x
  2. Step 2: Convert to fraction form
    2,112.23/2,911.41 = 1,691.84/x
  3. Step 3: Cross multiply
    2,112.23x = 2,911.41 × 1,691.84
  4. Step 4: Simplify right side
    2,112.23x = 4,925,639.89
  5. Step 5: Solve for x
    x = 4,925,639.89/2,112.23
  6. Step 6: Final answer
    x = 2,331.96

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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.