Home / 3,184.38-4,394.70-1,768.15

Finding the Fourth Proportional to 3,184.38, 4,394.70 and 1,768.15

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Solution

The fourth proportional to 3,184.38, 4,394.70 and 1,768.15 is: 2,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.38 : 4,394.70 = 1,768.15 : x
  2. Step 2: Convert to fraction form
    3,184.38/4,394.70 = 1,768.15/x
  3. Step 3: Cross multiply
    3,184.38x = 4,394.70 × 1,768.15
  4. Step 4: Simplify right side
    3,184.38x = 7,770,488.81
  5. Step 5: Solve for x
    x = 7,770,488.81/3,184.38
  6. Step 6: Final answer
    x = 2,440.19

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Half scale
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Double scale
Find fourth proportional to 3,185.38, 4,396.08 and 1,769.15
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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.