Home / 4,099.12-6,148.68-1,021.12

Finding the Fourth Proportional to 4,099.12, 6,148.68 and 1,021.12

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Solution

The fourth proportional to 4,099.12, 6,148.68 and 1,021.12 is: 1,531.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,099.12 : 6,148.68 = 1,021.12 : x
  2. Step 2: Convert to fraction form
    4,099.12/6,148.68 = 1,021.12/x
  3. Step 3: Cross multiply
    4,099.12x = 6,148.68 × 1,021.12
  4. Step 4: Simplify right side
    4,099.12x = 6,278,540.12
  5. Step 5: Solve for x
    x = 6,278,540.12/4,099.12
  6. Step 6: Final answer
    x = 1,531.68

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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.