Home / 3,908.70-5,393.61-2,230.47

Finding the Fourth Proportional to 3,908.70, 5,393.61 and 2,230.47

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Solution

The fourth proportional to 3,908.70, 5,393.61 and 2,230.47 is: 3,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.70 : 5,393.61 = 2,230.47 : x
  2. Step 2: Convert to fraction form
    3,908.70/5,393.61 = 2,230.47/x
  3. Step 3: Cross multiply
    3,908.70x = 5,393.61 × 2,230.47
  4. Step 4: Simplify right side
    3,908.70x = 12,030,285.30
  5. Step 5: Solve for x
    x = 12,030,285.30/3,908.70
  6. Step 6: Final answer
    x = 3,077.82

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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.