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Finding the Fourth Proportional to 2,611.68, 3,604.22 and 1,550.00

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Solution

The fourth proportional to 2,611.68, 3,604.22 and 1,550.00 is: 2,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.68 : 3,604.22 = 1,550.00 : x
  2. Step 2: Convert to fraction form
    2,611.68/3,604.22 = 1,550.00/x
  3. Step 3: Cross multiply
    2,611.68x = 3,604.22 × 1,550.00
  4. Step 4: Simplify right side
    2,611.68x = 5,586,515.23
  5. Step 5: Solve for x
    x = 5,586,515.23/2,611.68
  6. Step 6: Final answer
    x = 2,139.05

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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.