Home / 3,905.79-5,849.37-2,148.09

Finding the Fourth Proportional to 3,905.79, 5,849.37 and 2,148.09

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Solution

The fourth proportional to 3,905.79, 5,849.37 and 2,148.09 is: 3,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.79 : 5,849.37 = 2,148.09 : x
  2. Step 2: Convert to fraction form
    3,905.79/5,849.37 = 2,148.09/x
  3. Step 3: Cross multiply
    3,905.79x = 5,849.37 × 2,148.09
  4. Step 4: Simplify right side
    3,905.79x = 12,564,973.20
  5. Step 5: Solve for x
    x = 12,564,973.20/3,905.79
  6. Step 6: Final answer
    x = 3,217.01

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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.