Home / 4,389.19-6,583.78-1,311.19

Finding the Fourth Proportional to 4,389.19, 6,583.78 and 1,311.19

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Solution

The fourth proportional to 4,389.19, 6,583.78 and 1,311.19 is: 1,966.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,389.19 : 6,583.78 = 1,311.19 : x
  2. Step 2: Convert to fraction form
    4,389.19/6,583.78 = 1,311.19/x
  3. Step 3: Cross multiply
    4,389.19x = 6,583.78 × 1,311.19
  4. Step 4: Simplify right side
    4,389.19x = 8,632,571.68
  5. Step 5: Solve for x
    x = 8,632,571.68/4,389.19
  6. Step 6: Final answer
    x = 1,966.78

Related Problems

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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.