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Finding the Fourth Proportional to 5,027.99, 6,939 and 2,789.84

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Solution

The fourth proportional to 5,027.99, 6,939 and 2,789.84 is: 3,850.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,027.99 : 6,939 = 2,789.84 : x
  2. Step 2: Convert to fraction form
    5,027.99/6,939 = 2,789.84/x
  3. Step 3: Cross multiply
    5,027.99x = 6,939 × 2,789.84
  4. Step 4: Simplify right side
    5,027.99x = 19,358,717.11
  5. Step 5: Solve for x
    x = 19,358,717.11/5,027.99
  6. Step 6: Final answer
    x = 3,850.19

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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.