Home / 3,919.02-5,878.77-1,251.18

Finding the Fourth Proportional to 3,919.02, 5,878.77 and 1,251.18

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Solution

The fourth proportional to 3,919.02, 5,878.77 and 1,251.18 is: 1,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.02 : 5,878.77 = 1,251.18 : x
  2. Step 2: Convert to fraction form
    3,919.02/5,878.77 = 1,251.18/x
  3. Step 3: Cross multiply
    3,919.02x = 5,878.77 × 1,251.18
  4. Step 4: Simplify right side
    3,919.02x = 7,355,399.45
  5. Step 5: Solve for x
    x = 7,355,399.45/3,919.02
  6. Step 6: Final answer
    x = 1,876.85

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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.