Home / 2,991.52-4,126.15-2,195.09

Finding the Fourth Proportional to 2,991.52, 4,126.15 and 2,195.09

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Solution

The fourth proportional to 2,991.52, 4,126.15 and 2,195.09 is: 3,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.52 : 4,126.15 = 2,195.09 : x
  2. Step 2: Convert to fraction form
    2,991.52/4,126.15 = 2,195.09/x
  3. Step 3: Cross multiply
    2,991.52x = 4,126.15 × 2,195.09
  4. Step 4: Simplify right side
    2,991.52x = 9,057,270.60
  5. Step 5: Solve for x
    x = 9,057,270.60/2,991.52
  6. Step 6: Final answer
    x = 3,027.65

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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.