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Finding the Fourth Proportional to 2,889.70, 4,326.99 and 2,240.98

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Solution

The fourth proportional to 2,889.70, 4,326.99 and 2,240.98 is: 3,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.70 : 4,326.99 = 2,240.98 : x
  2. Step 2: Convert to fraction form
    2,889.70/4,326.99 = 2,240.98/x
  3. Step 3: Cross multiply
    2,889.70x = 4,326.99 × 2,240.98
  4. Step 4: Simplify right side
    2,889.70x = 9,696,698.05
  5. Step 5: Solve for x
    x = 9,696,698.05/2,889.70
  6. Step 6: Final answer
    x = 3,355.61

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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.