Home / 3,791.78-5,232.30-2,113.08

Finding the Fourth Proportional to 3,791.78, 5,232.30 and 2,113.08

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Solution

The fourth proportional to 3,791.78, 5,232.30 and 2,113.08 is: 2,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.78 : 5,232.30 = 2,113.08 : x
  2. Step 2: Convert to fraction form
    3,791.78/5,232.30 = 2,113.08/x
  3. Step 3: Cross multiply
    3,791.78x = 5,232.30 × 2,113.08
  4. Step 4: Simplify right side
    3,791.78x = 11,056,268.48
  5. Step 5: Solve for x
    x = 11,056,268.48/3,791.78
  6. Step 6: Final answer
    x = 2,915.85

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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.