Home / 3,190.59-4,400.07-1,995.20

Finding the Fourth Proportional to 3,190.59, 4,400.07 and 1,995.20

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Solution

The fourth proportional to 3,190.59, 4,400.07 and 1,995.20 is: 2,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.59 : 4,400.07 = 1,995.20 : x
  2. Step 2: Convert to fraction form
    3,190.59/4,400.07 = 1,995.20/x
  3. Step 3: Cross multiply
    3,190.59x = 4,400.07 × 1,995.20
  4. Step 4: Simplify right side
    3,190.59x = 8,778,997.66
  5. Step 5: Solve for x
    x = 8,778,997.66/3,190.59
  6. Step 6: Final answer
    x = 2,751.53

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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.