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Finding the Fourth Proportional to 6,661.14, 9,991.67 and 1,730.76

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Solution

The fourth proportional to 6,661.14, 9,991.67 and 1,730.76 is: 2,596.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.14 : 9,991.67 = 1,730.76 : x
  2. Step 2: Convert to fraction form
    6,661.14/9,991.67 = 1,730.76/x
  3. Step 3: Cross multiply
    6,661.14x = 9,991.67 × 1,730.76
  4. Step 4: Simplify right side
    6,661.14x = 17,293,174.12
  5. Step 5: Solve for x
    x = 17,293,174.12/6,661.14
  6. Step 6: Final answer
    x = 2,596.13

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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.