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Finding the Fourth Proportional to 6,345.39, 8,757.64 and 3,827.86

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Solution

The fourth proportional to 6,345.39, 8,757.64 and 3,827.86 is: 5,283.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.39 : 8,757.64 = 3,827.86 : x
  2. Step 2: Convert to fraction form
    6,345.39/8,757.64 = 3,827.86/x
  3. Step 3: Cross multiply
    6,345.39x = 8,757.64 × 3,827.86
  4. Step 4: Simplify right side
    6,345.39x = 33,522,976.06
  5. Step 5: Solve for x
    x = 33,522,976.06/6,345.39
  6. Step 6: Final answer
    x = 5,283.05

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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.