Home / 2,636.16-3,947.76-2,171.04

Finding the Fourth Proportional to 2,636.16, 3,947.76 and 2,171.04

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Solution

The fourth proportional to 2,636.16, 3,947.76 and 2,171.04 is: 3,251.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.16 : 3,947.76 = 2,171.04 : x
  2. Step 2: Convert to fraction form
    2,636.16/3,947.76 = 2,171.04/x
  3. Step 3: Cross multiply
    2,636.16x = 3,947.76 × 2,171.04
  4. Step 4: Simplify right side
    2,636.16x = 8,570,744.87
  5. Step 5: Solve for x
    x = 8,570,744.87/2,636.16
  6. Step 6: Final answer
    x = 3,251.22

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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.