Home / 5,066.40-6,991.82-2,828.70

Finding the Fourth Proportional to 5,066.40, 6,991.82 and 2,828.70

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Solution

The fourth proportional to 5,066.40, 6,991.82 and 2,828.70 is: 3,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,066.40 : 6,991.82 = 2,828.70 : x
  2. Step 2: Convert to fraction form
    5,066.40/6,991.82 = 2,828.70/x
  3. Step 3: Cross multiply
    5,066.40x = 6,991.82 × 2,828.70
  4. Step 4: Simplify right side
    5,066.40x = 19,777,747.09
  5. Step 5: Solve for x
    x = 19,777,747.09/5,066.40
  6. Step 6: Final answer
    x = 3,903.71

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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.