Home / 3,717.76-5,129.60-2,226.16

Finding the Fourth Proportional to 3,717.76, 5,129.60 and 2,226.16

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Solution

The fourth proportional to 3,717.76, 5,129.60 and 2,226.16 is: 3,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.76 : 5,129.60 = 2,226.16 : x
  2. Step 2: Convert to fraction form
    3,717.76/5,129.60 = 2,226.16/x
  3. Step 3: Cross multiply
    3,717.76x = 5,129.60 × 2,226.16
  4. Step 4: Simplify right side
    3,717.76x = 11,419,310.34
  5. Step 5: Solve for x
    x = 11,419,310.34/3,717.76
  6. Step 6: Final answer
    x = 3,071.56

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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.