Home / 2,705.82-4,056.57-2,131.26

Finding the Fourth Proportional to 2,705.82, 4,056.57 and 2,131.26

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Solution

The fourth proportional to 2,705.82, 4,056.57 and 2,131.26 is: 3,195.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.82 : 4,056.57 = 2,131.26 : x
  2. Step 2: Convert to fraction form
    2,705.82/4,056.57 = 2,131.26/x
  3. Step 3: Cross multiply
    2,705.82x = 4,056.57 × 2,131.26
  4. Step 4: Simplify right side
    2,705.82x = 8,645,605.38
  5. Step 5: Solve for x
    x = 8,645,605.38/2,705.82
  6. Step 6: Final answer
    x = 3,195.19

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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.