Home / 2,939.97-4,409.15-2,111.34

Finding the Fourth Proportional to 2,939.97, 4,409.15 and 2,111.34

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Solution

The fourth proportional to 2,939.97, 4,409.15 and 2,111.34 is: 3,166.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.97 : 4,409.15 = 2,111.34 : x
  2. Step 2: Convert to fraction form
    2,939.97/4,409.15 = 2,111.34/x
  3. Step 3: Cross multiply
    2,939.97x = 4,409.15 × 2,111.34
  4. Step 4: Simplify right side
    2,939.97x = 9,309,204.20
  5. Step 5: Solve for x
    x = 9,309,204.20/2,939.97
  6. Step 6: Final answer
    x = 3,166.43

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1.5x scale

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.