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Finding the Fourth Proportional to 6,653.31, 9,979.90 and 2,549.31

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Solution

The fourth proportional to 6,653.31, 9,979.90 and 2,549.31 is: 3,823.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.31 : 9,979.90 = 2,549.31 : x
  2. Step 2: Convert to fraction form
    6,653.31/9,979.90 = 2,549.31/x
  3. Step 3: Cross multiply
    6,653.31x = 9,979.90 × 2,549.31
  4. Step 4: Simplify right side
    6,653.31x = 25,441,858.87
  5. Step 5: Solve for x
    x = 25,441,858.87/6,653.31
  6. Step 6: Final answer
    x = 3,823.94

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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.