Home / 4,614.25-6,921.31-2,147.69

Finding the Fourth Proportional to 4,614.25, 6,921.31 and 2,147.69

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Solution

The fourth proportional to 4,614.25, 6,921.31 and 2,147.69 is: 3,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,614.25 : 6,921.31 = 2,147.69 : x
  2. Step 2: Convert to fraction form
    4,614.25/6,921.31 = 2,147.69/x
  3. Step 3: Cross multiply
    4,614.25x = 6,921.31 × 2,147.69
  4. Step 4: Simplify right side
    4,614.25x = 14,864,828.27
  5. Step 5: Solve for x
    x = 14,864,828.27/4,614.25
  6. Step 6: Final answer
    x = 3,221.50

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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.