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Finding the Fourth Proportional to 6,400.64, 8,832.92 and 3,568.19

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Solution

The fourth proportional to 6,400.64, 8,832.92 and 3,568.19 is: 4,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.64 : 8,832.92 = 3,568.19 : x
  2. Step 2: Convert to fraction form
    6,400.64/8,832.92 = 3,568.19/x
  3. Step 3: Cross multiply
    6,400.64x = 8,832.92 × 3,568.19
  4. Step 4: Simplify right side
    6,400.64x = 31,517,567.82
  5. Step 5: Solve for x
    x = 31,517,567.82/6,400.64
  6. Step 6: Final answer
    x = 4,924.13

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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.