Home / 3,850.12-5,312.82-2,171.08

Finding the Fourth Proportional to 3,850.12, 5,312.82 and 2,171.08

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Solution

The fourth proportional to 3,850.12, 5,312.82 and 2,171.08 is: 2,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.12 : 5,312.82 = 2,171.08 : x
  2. Step 2: Convert to fraction form
    3,850.12/5,312.82 = 2,171.08/x
  3. Step 3: Cross multiply
    3,850.12x = 5,312.82 × 2,171.08
  4. Step 4: Simplify right side
    3,850.12x = 11,534,557.25
  5. Step 5: Solve for x
    x = 11,534,557.25/3,850.12
  6. Step 6: Final answer
    x = 2,995.90

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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.