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Finding the Fourth Proportional to 3,789.99, 5,230.04 and 2,298.51

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Solution

The fourth proportional to 3,789.99, 5,230.04 and 2,298.51 is: 3,171.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.99 : 5,230.04 = 2,298.51 : x
  2. Step 2: Convert to fraction form
    3,789.99/5,230.04 = 2,298.51/x
  3. Step 3: Cross multiply
    3,789.99x = 5,230.04 × 2,298.51
  4. Step 4: Simplify right side
    3,789.99x = 12,021,287.75
  5. Step 5: Solve for x
    x = 12,021,287.75/3,789.99
  6. Step 6: Final answer
    x = 3,171.85

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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.