Home / 5,726.26-8,589.39-3,127.78

Finding the Fourth Proportional to 5,726.26, 8,589.39 and 3,127.78

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Solution

The fourth proportional to 5,726.26, 8,589.39 and 3,127.78 is: 4,691.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.26 : 8,589.39 = 3,127.78 : x
  2. Step 2: Convert to fraction form
    5,726.26/8,589.39 = 3,127.78/x
  3. Step 3: Cross multiply
    5,726.26x = 8,589.39 × 3,127.78
  4. Step 4: Simplify right side
    5,726.26x = 26,865,722.25
  5. Step 5: Solve for x
    x = 26,865,722.25/5,726.26
  6. Step 6: Final answer
    x = 4,691.67

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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.