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Finding the Fourth Proportional to 2,192.22, 3,288.90 and 959.87

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Solution

The fourth proportional to 2,192.22, 3,288.90 and 959.87 is: 1,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.22 : 3,288.90 = 959.87 : x
  2. Step 2: Convert to fraction form
    2,192.22/3,288.90 = 959.87/x
  3. Step 3: Cross multiply
    2,192.22x = 3,288.90 × 959.87
  4. Step 4: Simplify right side
    2,192.22x = 3,156,900.00
  5. Step 5: Solve for x
    x = 3,156,900.00/2,192.22
  6. Step 6: Final answer
    x = 1,440.05

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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.