Home / 6,688.48-9,231.62-4,170.10

Finding the Fourth Proportional to 6,688.48, 9,231.62 and 4,170.10

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Solution

The fourth proportional to 6,688.48, 9,231.62 and 4,170.10 is: 5,755.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.48 : 9,231.62 = 4,170.10 : x
  2. Step 2: Convert to fraction form
    6,688.48/9,231.62 = 4,170.10/x
  3. Step 3: Cross multiply
    6,688.48x = 9,231.62 × 4,170.10
  4. Step 4: Simplify right side
    6,688.48x = 38,496,778.56
  5. Step 5: Solve for x
    x = 38,496,778.56/6,688.48
  6. Step 6: Final answer
    x = 5,755.68

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Half scale
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Double scale
Find fourth proportional to 6,689.48, 9,233 and 4,171.10
Similar ratio
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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.