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Finding the Fourth Proportional to 5,939.28, 8,195.22 and 3,815.28

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Solution

The fourth proportional to 5,939.28, 8,195.22 and 3,815.28 is: 5,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,939.28 : 8,195.22 = 3,815.28 : x
  2. Step 2: Convert to fraction form
    5,939.28/8,195.22 = 3,815.28/x
  3. Step 3: Cross multiply
    5,939.28x = 8,195.22 × 3,815.28
  4. Step 4: Simplify right side
    5,939.28x = 31,267,058.96
  5. Step 5: Solve for x
    x = 31,267,058.96/5,939.28
  6. Step 6: Final answer
    x = 5,264.45

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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.