Home / 3,192.90-4,789.05-1,438.02

Finding the Fourth Proportional to 3,192.90, 4,789.05 and 1,438.02

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Solution

The fourth proportional to 3,192.90, 4,789.05 and 1,438.02 is: 2,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.90 : 4,789.05 = 1,438.02 : x
  2. Step 2: Convert to fraction form
    3,192.90/4,789.05 = 1,438.02/x
  3. Step 3: Cross multiply
    3,192.90x = 4,789.05 × 1,438.02
  4. Step 4: Simplify right side
    3,192.90x = 6,886,749.68
  5. Step 5: Solve for x
    x = 6,886,749.68/3,192.90
  6. Step 6: Final answer
    x = 2,156.89

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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.