Home / 2,817.27-3,885.46-2,110.77

Finding the Fourth Proportional to 2,817.27, 3,885.46 and 2,110.77

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Solution

The fourth proportional to 2,817.27, 3,885.46 and 2,110.77 is: 2,911.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.27 : 3,885.46 = 2,110.77 : x
  2. Step 2: Convert to fraction form
    2,817.27/3,885.46 = 2,110.77/x
  3. Step 3: Cross multiply
    2,817.27x = 3,885.46 × 2,110.77
  4. Step 4: Simplify right side
    2,817.27x = 8,201,287.70
  5. Step 5: Solve for x
    x = 8,201,287.70/2,817.27
  6. Step 6: Final answer
    x = 2,911.08

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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.