Home / 2,789.64-4,184.61-1,230.37

Finding the Fourth Proportional to 2,789.64, 4,184.61 and 1,230.37

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Solution

The fourth proportional to 2,789.64, 4,184.61 and 1,230.37 is: 1,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.64 : 4,184.61 = 1,230.37 : x
  2. Step 2: Convert to fraction form
    2,789.64/4,184.61 = 1,230.37/x
  3. Step 3: Cross multiply
    2,789.64x = 4,184.61 × 1,230.37
  4. Step 4: Simplify right side
    2,789.64x = 5,148,618.61
  5. Step 5: Solve for x
    x = 5,148,618.61/2,789.64
  6. Step 6: Final answer
    x = 1,845.62

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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.