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Finding the Fourth Proportional to 6,369.16, 8,789.38 and 3,574.64

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Solution

The fourth proportional to 6,369.16, 8,789.38 and 3,574.64 is: 4,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.16 : 8,789.38 = 3,574.64 : x
  2. Step 2: Convert to fraction form
    6,369.16/8,789.38 = 3,574.64/x
  3. Step 3: Cross multiply
    6,369.16x = 8,789.38 × 3,574.64
  4. Step 4: Simplify right side
    6,369.16x = 31,418,869.32
  5. Step 5: Solve for x
    x = 31,418,869.32/6,369.16
  6. Step 6: Final answer
    x = 4,932.97

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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.