Home / 7,726.55-11,589.21-2,179.67

Finding the Fourth Proportional to 7,726.55, 11,589.21 and 2,179.67

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Solution

The fourth proportional to 7,726.55, 11,589.21 and 2,179.67 is: 3,269.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.55 : 11,589.21 = 2,179.67 : x
  2. Step 2: Convert to fraction form
    7,726.55/11,589.21 = 2,179.67/x
  3. Step 3: Cross multiply
    7,726.55x = 11,589.21 × 2,179.67
  4. Step 4: Simplify right side
    7,726.55x = 25,260,595.41
  5. Step 5: Solve for x
    x = 25,260,595.41/7,726.55
  6. Step 6: Final answer
    x = 3,269.33

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Half scale
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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.