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Finding the Fourth Proportional to 6,326.72, 9,490.09 and 1,944.21

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Solution

The fourth proportional to 6,326.72, 9,490.09 and 1,944.21 is: 2,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,326.72 : 9,490.09 = 1,944.21 : x
  2. Step 2: Convert to fraction form
    6,326.72/9,490.09 = 1,944.21/x
  3. Step 3: Cross multiply
    6,326.72x = 9,490.09 × 1,944.21
  4. Step 4: Simplify right side
    6,326.72x = 18,450,727.88
  5. Step 5: Solve for x
    x = 18,450,727.88/6,326.72
  6. Step 6: Final answer
    x = 2,916.32

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.