Home / 2,147.50-3,219.04-1,454.23

Finding the Fourth Proportional to 2,147.50, 3,219.04 and 1,454.23

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Solution

The fourth proportional to 2,147.50, 3,219.04 and 1,454.23 is: 2,179.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.50 : 3,219.04 = 1,454.23 : x
  2. Step 2: Convert to fraction form
    2,147.50/3,219.04 = 1,454.23/x
  3. Step 3: Cross multiply
    2,147.50x = 3,219.04 × 1,454.23
  4. Step 4: Simplify right side
    2,147.50x = 4,681,224.54
  5. Step 5: Solve for x
    x = 4,681,224.54/2,147.50
  6. Step 6: Final answer
    x = 2,179.85

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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.