Home / 2,081.11-2,871.84-1,136.92

Finding the Fourth Proportional to 2,081.11, 2,871.84 and 1,136.92

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Solution

The fourth proportional to 2,081.11, 2,871.84 and 1,136.92 is: 1,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.11 : 2,871.84 = 1,136.92 : x
  2. Step 2: Convert to fraction form
    2,081.11/2,871.84 = 1,136.92/x
  3. Step 3: Cross multiply
    2,081.11x = 2,871.84 × 1,136.92
  4. Step 4: Simplify right side
    2,081.11x = 3,265,052.33
  5. Step 5: Solve for x
    x = 3,265,052.33/2,081.11
  6. Step 6: Final answer
    x = 1,568.90

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,082.11, 2,873.22 and 1,137.92
Similar ratio
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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.