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Finding the Fourth Proportional to 5,928.12, 8,181 and 4,065.12

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Solution

The fourth proportional to 5,928.12, 8,181 and 4,065.12 is: 5,610.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,928.12 : 8,181 = 4,065.12 : x
  2. Step 2: Convert to fraction form
    5,928.12/8,181 = 4,065.12/x
  3. Step 3: Cross multiply
    5,928.12x = 8,181 × 4,065.12
  4. Step 4: Simplify right side
    5,928.12x = 33,256,746.72
  5. Step 5: Solve for x
    x = 33,256,746.72/5,928.12
  6. Step 6: Final answer
    x = 5,610.00

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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.