Home / 6,119.12-9,178.68-2,015.12

Finding the Fourth Proportional to 6,119.12, 9,178.68 and 2,015.12

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Solution

The fourth proportional to 6,119.12, 9,178.68 and 2,015.12 is: 3,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.12 : 9,178.68 = 2,015.12 : x
  2. Step 2: Convert to fraction form
    6,119.12/9,178.68 = 2,015.12/x
  3. Step 3: Cross multiply
    6,119.12x = 9,178.68 × 2,015.12
  4. Step 4: Simplify right side
    6,119.12x = 18,496,141.64
  5. Step 5: Solve for x
    x = 18,496,141.64/6,119.12
  6. Step 6: Final answer
    x = 3,022.68

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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.