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Finding the Fourth Proportional to 5,805.72, 8,007.80 and 3,568.85

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Solution

The fourth proportional to 5,805.72, 8,007.80 and 3,568.85 is: 4,922.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.72 : 8,007.80 = 3,568.85 : x
  2. Step 2: Convert to fraction form
    5,805.72/8,007.80 = 3,568.85/x
  3. Step 3: Cross multiply
    5,805.72x = 8,007.80 × 3,568.85
  4. Step 4: Simplify right side
    5,805.72x = 28,578,654.22
  5. Step 5: Solve for x
    x = 28,578,654.22/5,805.72
  6. Step 6: Final answer
    x = 4,922.50

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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.