Home / 3,919.89-5,878.01-1,454.66

Finding the Fourth Proportional to 3,919.89, 5,878.01 and 1,454.66

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Solution

The fourth proportional to 3,919.89, 5,878.01 and 1,454.66 is: 2,181.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.89 : 5,878.01 = 1,454.66 : x
  2. Step 2: Convert to fraction form
    3,919.89/5,878.01 = 1,454.66/x
  3. Step 3: Cross multiply
    3,919.89x = 5,878.01 × 1,454.66
  4. Step 4: Simplify right side
    3,919.89x = 8,550,480.27
  5. Step 5: Solve for x
    x = 8,550,480.27/3,919.89
  6. Step 6: Final answer
    x = 2,181.31

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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.