Home / 7,726.26-11,589.39-3,109.26

Finding the Fourth Proportional to 7,726.26, 11,589.39 and 3,109.26

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Solution

The fourth proportional to 7,726.26, 11,589.39 and 3,109.26 is: 4,663.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.26 : 11,589.39 = 3,109.26 : x
  2. Step 2: Convert to fraction form
    7,726.26/11,589.39 = 3,109.26/x
  3. Step 3: Cross multiply
    7,726.26x = 11,589.39 × 3,109.26
  4. Step 4: Simplify right side
    7,726.26x = 36,034,426.75
  5. Step 5: Solve for x
    x = 36,034,426.75/7,726.26
  6. Step 6: Final answer
    x = 4,663.89

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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.