Home / 5,919.74-8,172.64-3,933.02

Finding the Fourth Proportional to 5,919.74, 8,172.64 and 3,933.02

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Solution

The fourth proportional to 5,919.74, 8,172.64 and 3,933.02 is: 5,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.74 : 8,172.64 = 3,933.02 : x
  2. Step 2: Convert to fraction form
    5,919.74/8,172.64 = 3,933.02/x
  3. Step 3: Cross multiply
    5,919.74x = 8,172.64 × 3,933.02
  4. Step 4: Simplify right side
    5,919.74x = 32,143,156.57
  5. Step 5: Solve for x
    x = 32,143,156.57/5,919.74
  6. Step 6: Final answer
    x = 5,429.83

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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.