Home / 3,292.38-4,932.81-1,921.50

Finding the Fourth Proportional to 3,292.38, 4,932.81 and 1,921.50

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Solution

The fourth proportional to 3,292.38, 4,932.81 and 1,921.50 is: 2,878.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,292.38 : 4,932.81 = 1,921.50 : x
  2. Step 2: Convert to fraction form
    3,292.38/4,932.81 = 1,921.50/x
  3. Step 3: Cross multiply
    3,292.38x = 4,932.81 × 1,921.50
  4. Step 4: Simplify right side
    3,292.38x = 9,478,394.42
  5. Step 5: Solve for x
    x = 9,478,394.42/3,292.38
  6. Step 6: Final answer
    x = 2,878.89

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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.