Home / 6,817.28-9,408.35-3,792.78

Finding the Fourth Proportional to 6,817.28, 9,408.35 and 3,792.78

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Solution

The fourth proportional to 6,817.28, 9,408.35 and 3,792.78 is: 5,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,817.28 : 9,408.35 = 3,792.78 : x
  2. Step 2: Convert to fraction form
    6,817.28/9,408.35 = 3,792.78/x
  3. Step 3: Cross multiply
    6,817.28x = 9,408.35 × 3,792.78
  4. Step 4: Simplify right side
    6,817.28x = 35,683,811.19
  5. Step 5: Solve for x
    x = 35,683,811.19/6,817.28
  6. Step 6: Final answer
    x = 5,234.32

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.