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Finding the Fourth Proportional to 6,661.26, 9,991.82 and 1,730.90

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Solution

The fourth proportional to 6,661.26, 9,991.82 and 1,730.90 is: 2,596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.26 : 9,991.82 = 1,730.90 : x
  2. Step 2: Convert to fraction form
    6,661.26/9,991.82 = 1,730.90/x
  3. Step 3: Cross multiply
    6,661.26x = 9,991.82 × 1,730.90
  4. Step 4: Simplify right side
    6,661.26x = 17,294,841.24
  5. Step 5: Solve for x
    x = 17,294,841.24/6,661.26
  6. Step 6: Final answer
    x = 2,596.33

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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.