Home / 2,628.31-3,947.93-2,218.24

Finding the Fourth Proportional to 2,628.31, 3,947.93 and 2,218.24

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Solution

The fourth proportional to 2,628.31, 3,947.93 and 2,218.24 is: 3,331.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.31 : 3,947.93 = 2,218.24 : x
  2. Step 2: Convert to fraction form
    2,628.31/3,947.93 = 2,218.24/x
  3. Step 3: Cross multiply
    2,628.31x = 3,947.93 × 2,218.24
  4. Step 4: Simplify right side
    2,628.31x = 8,757,456.24
  5. Step 5: Solve for x
    x = 8,757,456.24/2,628.31
  6. Step 6: Final answer
    x = 3,331.97

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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.