Home / 3,928.23-5,893.40-1,331.17

Finding the Fourth Proportional to 3,928.23, 5,893.40 and 1,331.17

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Solution

The fourth proportional to 3,928.23, 5,893.40 and 1,331.17 is: 1,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.23 : 5,893.40 = 1,331.17 : x
  2. Step 2: Convert to fraction form
    3,928.23/5,893.40 = 1,331.17/x
  3. Step 3: Cross multiply
    3,928.23x = 5,893.40 × 1,331.17
  4. Step 4: Simplify right side
    3,928.23x = 7,845,105.87
  5. Step 5: Solve for x
    x = 7,845,105.87/3,928.23
  6. Step 6: Final answer
    x = 1,997.11

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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.