Home / 2,997.35-4,131.90-1,935.03

Finding the Fourth Proportional to 2,997.35, 4,131.90 and 1,935.03

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Solution

The fourth proportional to 2,997.35, 4,131.90 and 1,935.03 is: 2,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.35 : 4,131.90 = 1,935.03 : x
  2. Step 2: Convert to fraction form
    2,997.35/4,131.90 = 1,935.03/x
  3. Step 3: Cross multiply
    2,997.35x = 4,131.90 × 1,935.03
  4. Step 4: Simplify right side
    2,997.35x = 7,995,365.95
  5. Step 5: Solve for x
    x = 7,995,365.95/2,997.35
  6. Step 6: Final answer
    x = 2,667.48

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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.