Home / 2,841.39-3,912.93-2,439.81

Finding the Fourth Proportional to 2,841.39, 3,912.93 and 2,439.81

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Solution

The fourth proportional to 2,841.39, 3,912.93 and 2,439.81 is: 3,359.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.39 : 3,912.93 = 2,439.81 : x
  2. Step 2: Convert to fraction form
    2,841.39/3,912.93 = 2,439.81/x
  3. Step 3: Cross multiply
    2,841.39x = 3,912.93 × 2,439.81
  4. Step 4: Simplify right side
    2,841.39x = 9,546,805.74
  5. Step 5: Solve for x
    x = 9,546,805.74/2,841.39
  6. Step 6: Final answer
    x = 3,359.91

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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.