Home / 3,905.09-5,857.52-1,439.85

Finding the Fourth Proportional to 3,905.09, 5,857.52 and 1,439.85

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Solution

The fourth proportional to 3,905.09, 5,857.52 and 1,439.85 is: 2,159.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.09 : 5,857.52 = 1,439.85 : x
  2. Step 2: Convert to fraction form
    3,905.09/5,857.52 = 1,439.85/x
  3. Step 3: Cross multiply
    3,905.09x = 5,857.52 × 1,439.85
  4. Step 4: Simplify right side
    3,905.09x = 8,433,948.46
  5. Step 5: Solve for x
    x = 8,433,948.46/3,905.09
  6. Step 6: Final answer
    x = 2,159.73

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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.