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Finding the Fourth Proportional to 7,859.87, 11,789.30 and 2,594.33

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Solution

The fourth proportional to 7,859.87, 11,789.30 and 2,594.33 is: 3,891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.87 : 11,789.30 = 2,594.33 : x
  2. Step 2: Convert to fraction form
    7,859.87/11,789.30 = 2,594.33/x
  3. Step 3: Cross multiply
    7,859.87x = 11,789.30 × 2,594.33
  4. Step 4: Simplify right side
    7,859.87x = 30,585,311.83
  5. Step 5: Solve for x
    x = 30,585,311.83/7,859.87
  6. Step 6: Final answer
    x = 3,891.32

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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.