Home / 2,935.14-4,049.85-1,991.10

Finding the Fourth Proportional to 2,935.14, 4,049.85 and 1,991.10

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Solution

The fourth proportional to 2,935.14, 4,049.85 and 1,991.10 is: 2,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,935.14 : 4,049.85 = 1,991.10 : x
  2. Step 2: Convert to fraction form
    2,935.14/4,049.85 = 1,991.10/x
  3. Step 3: Cross multiply
    2,935.14x = 4,049.85 × 1,991.10
  4. Step 4: Simplify right side
    2,935.14x = 8,063,656.34
  5. Step 5: Solve for x
    x = 8,063,656.34/2,935.14
  6. Step 6: Final answer
    x = 2,747.28

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1.5x scale

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.