Home / 3,783.77-5,220.78-2,211.14

Finding the Fourth Proportional to 3,783.77, 5,220.78 and 2,211.14

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Solution

The fourth proportional to 3,783.77, 5,220.78 and 2,211.14 is: 3,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.77 : 5,220.78 = 2,211.14 : x
  2. Step 2: Convert to fraction form
    3,783.77/5,220.78 = 2,211.14/x
  3. Step 3: Cross multiply
    3,783.77x = 5,220.78 × 2,211.14
  4. Step 4: Simplify right side
    3,783.77x = 11,543,875.49
  5. Step 5: Solve for x
    x = 11,543,875.49/3,783.77
  6. Step 6: Final answer
    x = 3,050.89

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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.