Home / 3,783.08-5,220.54-2,189.48

Finding the Fourth Proportional to 3,783.08, 5,220.54 and 2,189.48

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Solution

The fourth proportional to 3,783.08, 5,220.54 and 2,189.48 is: 3,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.08 : 5,220.54 = 2,189.48 : x
  2. Step 2: Convert to fraction form
    3,783.08/5,220.54 = 2,189.48/x
  3. Step 3: Cross multiply
    3,783.08x = 5,220.54 × 2,189.48
  4. Step 4: Simplify right side
    3,783.08x = 11,430,267.92
  5. Step 5: Solve for x
    x = 11,430,267.92/3,783.08
  6. Step 6: Final answer
    x = 3,021.42

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Half scale
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Double scale
Find fourth proportional to 3,784.08, 5,221.92 and 2,190.48
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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.