Home / 3,908.89-5,393.77-2,230.20

Finding the Fourth Proportional to 3,908.89, 5,393.77 and 2,230.20

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Solution

The fourth proportional to 3,908.89, 5,393.77 and 2,230.20 is: 3,077.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.89 : 5,393.77 = 2,230.20 : x
  2. Step 2: Convert to fraction form
    3,908.89/5,393.77 = 2,230.20/x
  3. Step 3: Cross multiply
    3,908.89x = 5,393.77 × 2,230.20
  4. Step 4: Simplify right side
    3,908.89x = 12,029,174.70
  5. Step 5: Solve for x
    x = 12,029,174.70/3,908.89
  6. Step 6: Final answer
    x = 3,077.39

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1.5x scale

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.