Home / 2,091.70-3,119.08-2,072.94

Finding the Fourth Proportional to 2,091.70, 3,119.08 and 2,072.94

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Solution

The fourth proportional to 2,091.70, 3,119.08 and 2,072.94 is: 3,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.70 : 3,119.08 = 2,072.94 : x
  2. Step 2: Convert to fraction form
    2,091.70/3,119.08 = 2,072.94/x
  3. Step 3: Cross multiply
    2,091.70x = 3,119.08 × 2,072.94
  4. Step 4: Simplify right side
    2,091.70x = 6,465,676.08
  5. Step 5: Solve for x
    x = 6,465,676.08/2,091.70
  6. Step 6: Final answer
    x = 3,091.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.