Home / 3,905.62-5,388.19-2,488.93

Finding the Fourth Proportional to 3,905.62, 5,388.19 and 2,488.93

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Solution

The fourth proportional to 3,905.62, 5,388.19 and 2,488.93 is: 3,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.62 : 5,388.19 = 2,488.93 : x
  2. Step 2: Convert to fraction form
    3,905.62/5,388.19 = 2,488.93/x
  3. Step 3: Cross multiply
    3,905.62x = 5,388.19 × 2,488.93
  4. Step 4: Simplify right side
    3,905.62x = 13,410,808.04
  5. Step 5: Solve for x
    x = 13,410,808.04/3,905.62
  6. Step 6: Final answer
    x = 3,433.72

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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.