Home / 2,111.39-3,160.80-1,563.97

Finding the Fourth Proportional to 2,111.39, 3,160.80 and 1,563.97

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Solution

The fourth proportional to 2,111.39, 3,160.80 and 1,563.97 is: 2,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.39 : 3,160.80 = 1,563.97 : x
  2. Step 2: Convert to fraction form
    2,111.39/3,160.80 = 1,563.97/x
  3. Step 3: Cross multiply
    2,111.39x = 3,160.80 × 1,563.97
  4. Step 4: Simplify right side
    2,111.39x = 4,943,396.38
  5. Step 5: Solve for x
    x = 4,943,396.38/2,111.39
  6. Step 6: Final answer
    x = 2,341.30

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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.