Home / 5,921.38-8,884.70-3,147.38

Finding the Fourth Proportional to 5,921.38, 8,884.70 and 3,147.38

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Solution

The fourth proportional to 5,921.38, 8,884.70 and 3,147.38 is: 4,722.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.38 : 8,884.70 = 3,147.38 : x
  2. Step 2: Convert to fraction form
    5,921.38/8,884.70 = 3,147.38/x
  3. Step 3: Cross multiply
    5,921.38x = 8,884.70 × 3,147.38
  4. Step 4: Simplify right side
    5,921.38x = 27,963,527.09
  5. Step 5: Solve for x
    x = 27,963,527.09/5,921.38
  6. Step 6: Final answer
    x = 4,722.47

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1.5x scale

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.