Home / 2,378.62-3,282.83-1,330.75

Finding the Fourth Proportional to 2,378.62, 3,282.83 and 1,330.75

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Solution

The fourth proportional to 2,378.62, 3,282.83 and 1,330.75 is: 1,836.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.62 : 3,282.83 = 1,330.75 : x
  2. Step 2: Convert to fraction form
    2,378.62/3,282.83 = 1,330.75/x
  3. Step 3: Cross multiply
    2,378.62x = 3,282.83 × 1,330.75
  4. Step 4: Simplify right side
    2,378.62x = 4,368,619.37
  5. Step 5: Solve for x
    x = 4,368,619.37/2,378.62
  6. Step 6: Final answer
    x = 1,836.62

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Half scale
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Double scale
Find fourth proportional to 2,379.62, 3,284.21 and 1,331.75
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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.