Home / 3,760.54-5,189.51-2,166.61

Finding the Fourth Proportional to 3,760.54, 5,189.51 and 2,166.61

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Solution

The fourth proportional to 3,760.54, 5,189.51 and 2,166.61 is: 2,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.54 : 5,189.51 = 2,166.61 : x
  2. Step 2: Convert to fraction form
    3,760.54/5,189.51 = 2,166.61/x
  3. Step 3: Cross multiply
    3,760.54x = 5,189.51 × 2,166.61
  4. Step 4: Simplify right side
    3,760.54x = 11,243,625.08
  5. Step 5: Solve for x
    x = 11,243,625.08/3,760.54
  6. Step 6: Final answer
    x = 2,989.89

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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.