Home / 3,807.82-5,250.03-2,912.68

Finding the Fourth Proportional to 3,807.82, 5,250.03 and 2,912.68

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Solution

The fourth proportional to 3,807.82, 5,250.03 and 2,912.68 is: 4,015.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.82 : 5,250.03 = 2,912.68 : x
  2. Step 2: Convert to fraction form
    3,807.82/5,250.03 = 2,912.68/x
  3. Step 3: Cross multiply
    3,807.82x = 5,250.03 × 2,912.68
  4. Step 4: Simplify right side
    3,807.82x = 15,291,657.38
  5. Step 5: Solve for x
    x = 15,291,657.38/3,807.82
  6. Step 6: Final answer
    x = 4,015.86

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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.