Home / 3,878.15-5,816.34-1,104.77

Finding the Fourth Proportional to 3,878.15, 5,816.34 and 1,104.77

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Solution

The fourth proportional to 3,878.15, 5,816.34 and 1,104.77 is: 1,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.15 : 5,816.34 = 1,104.77 : x
  2. Step 2: Convert to fraction form
    3,878.15/5,816.34 = 1,104.77/x
  3. Step 3: Cross multiply
    3,878.15x = 5,816.34 × 1,104.77
  4. Step 4: Simplify right side
    3,878.15x = 6,425,732.48
  5. Step 5: Solve for x
    x = 6,425,732.48/3,878.15
  6. Step 6: Final answer
    x = 1,656.91

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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.