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Finding the Fourth Proportional to 3,105.99, 4,659.30 and 1,026

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Solution

The fourth proportional to 3,105.99, 4,659.30 and 1,026 is: 1,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.99 : 4,659.30 = 1,026 : x
  2. Step 2: Convert to fraction form
    3,105.99/4,659.30 = 1,026/x
  3. Step 3: Cross multiply
    3,105.99x = 4,659.30 × 1,026
  4. Step 4: Simplify right side
    3,105.99x = 4,780,441.80
  5. Step 5: Solve for x
    x = 4,780,441.80/3,105.99
  6. Step 6: Final answer
    x = 1,539.10

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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.