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Finding the Fourth Proportional to 6,382.08, 8,810.64 and 4,813.92

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Solution

The fourth proportional to 6,382.08, 8,810.64 and 4,813.92 is: 6,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,382.08 : 8,810.64 = 4,813.92 : x
  2. Step 2: Convert to fraction form
    6,382.08/8,810.64 = 4,813.92/x
  3. Step 3: Cross multiply
    6,382.08x = 8,810.64 × 4,813.92
  4. Step 4: Simplify right side
    6,382.08x = 42,413,716.11
  5. Step 5: Solve for x
    x = 42,413,716.11/6,382.08
  6. Step 6: Final answer
    x = 6,645.75

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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.