Home / 3,809.24-5,717.10-1,961.72

Finding the Fourth Proportional to 3,809.24, 5,717.10 and 1,961.72

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Solution

The fourth proportional to 3,809.24, 5,717.10 and 1,961.72 is: 2,944.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.24 : 5,717.10 = 1,961.72 : x
  2. Step 2: Convert to fraction form
    3,809.24/5,717.10 = 1,961.72/x
  3. Step 3: Cross multiply
    3,809.24x = 5,717.10 × 1,961.72
  4. Step 4: Simplify right side
    3,809.24x = 11,215,349.41
  5. Step 5: Solve for x
    x = 11,215,349.41/3,809.24
  6. Step 6: Final answer
    x = 2,944.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.