Home / 3,429.11-5,142.62-1,089.02

Finding the Fourth Proportional to 3,429.11, 5,142.62 and 1,089.02

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Solution

The fourth proportional to 3,429.11, 5,142.62 and 1,089.02 is: 1,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.11 : 5,142.62 = 1,089.02 : x
  2. Step 2: Convert to fraction form
    3,429.11/5,142.62 = 1,089.02/x
  3. Step 3: Cross multiply
    3,429.11x = 5,142.62 × 1,089.02
  4. Step 4: Simplify right side
    3,429.11x = 5,600,384.87
  5. Step 5: Solve for x
    x = 5,600,384.87/3,429.11
  6. Step 6: Final answer
    x = 1,633.19

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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.