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Finding the Fourth Proportional to 6,568.63, 9,064.80 and 3,879.64

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Solution

The fourth proportional to 6,568.63, 9,064.80 and 3,879.64 is: 5,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,568.63 : 9,064.80 = 3,879.64 : x
  2. Step 2: Convert to fraction form
    6,568.63/9,064.80 = 3,879.64/x
  3. Step 3: Cross multiply
    6,568.63x = 9,064.80 × 3,879.64
  4. Step 4: Simplify right side
    6,568.63x = 35,168,160.67
  5. Step 5: Solve for x
    x = 35,168,160.67/6,568.63
  6. Step 6: Final answer
    x = 5,353.96

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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.