Home / 3,845.94-5,767.08-1,995.20

Finding the Fourth Proportional to 3,845.94, 5,767.08 and 1,995.20

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Solution

The fourth proportional to 3,845.94, 5,767.08 and 1,995.20 is: 2,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.94 : 5,767.08 = 1,995.20 : x
  2. Step 2: Convert to fraction form
    3,845.94/5,767.08 = 1,995.20/x
  3. Step 3: Cross multiply
    3,845.94x = 5,767.08 × 1,995.20
  4. Step 4: Simplify right side
    3,845.94x = 11,506,478.02
  5. Step 5: Solve for x
    x = 11,506,478.02/3,845.94
  6. Step 6: Final answer
    x = 2,991.85

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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.