Home / 3,905.08-5,857.08-1,439.90

Finding the Fourth Proportional to 3,905.08, 5,857.08 and 1,439.90

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Solution

The fourth proportional to 3,905.08, 5,857.08 and 1,439.90 is: 2,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.08 : 5,857.08 = 1,439.90 : x
  2. Step 2: Convert to fraction form
    3,905.08/5,857.08 = 1,439.90/x
  3. Step 3: Cross multiply
    3,905.08x = 5,857.08 × 1,439.90
  4. Step 4: Simplify right side
    3,905.08x = 8,433,609.49
  5. Step 5: Solve for x
    x = 8,433,609.49/3,905.08
  6. Step 6: Final answer
    x = 2,159.65

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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.