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Finding the Fourth Proportional to 6,653.08, 9,979.61 and 1,722.31

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Solution

The fourth proportional to 6,653.08, 9,979.61 and 1,722.31 is: 2,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.08 : 9,979.61 = 1,722.31 : x
  2. Step 2: Convert to fraction form
    6,653.08/9,979.61 = 1,722.31/x
  3. Step 3: Cross multiply
    6,653.08x = 9,979.61 × 1,722.31
  4. Step 4: Simplify right side
    6,653.08x = 17,187,948.54
  5. Step 5: Solve for x
    x = 17,187,948.54/6,653.08
  6. Step 6: Final answer
    x = 2,583.46

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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.