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Finding the Fourth Proportional to 6,296.77, 8,689.78 and 3,608.42

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Solution

The fourth proportional to 6,296.77, 8,689.78 and 3,608.42 is: 4,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,296.77 : 8,689.78 = 3,608.42 : x
  2. Step 2: Convert to fraction form
    6,296.77/8,689.78 = 3,608.42/x
  3. Step 3: Cross multiply
    6,296.77x = 8,689.78 × 3,608.42
  4. Step 4: Simplify right side
    6,296.77x = 31,356,337.01
  5. Step 5: Solve for x
    x = 31,356,337.01/6,296.77
  6. Step 6: Final answer
    x = 4,979.75

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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.