Home / 2,021.12-2,789.04-1,136.96

Finding the Fourth Proportional to 2,021.12, 2,789.04 and 1,136.96

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Solution

The fourth proportional to 2,021.12, 2,789.04 and 1,136.96 is: 1,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.12 : 2,789.04 = 1,136.96 : x
  2. Step 2: Convert to fraction form
    2,021.12/2,789.04 = 1,136.96/x
  3. Step 3: Cross multiply
    2,021.12x = 2,789.04 × 1,136.96
  4. Step 4: Simplify right side
    2,021.12x = 3,171,026.92
  5. Step 5: Solve for x
    x = 3,171,026.92/2,021.12
  6. Step 6: Final answer
    x = 1,568.95

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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.