Home / 7,149.90-10,725.89-2,219.94

Finding the Fourth Proportional to 7,149.90, 10,725.89 and 2,219.94

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Solution

The fourth proportional to 7,149.90, 10,725.89 and 2,219.94 is: 3,330.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.90 : 10,725.89 = 2,219.94 : x
  2. Step 2: Convert to fraction form
    7,149.90/10,725.89 = 2,219.94/x
  3. Step 3: Cross multiply
    7,149.90x = 10,725.89 × 2,219.94
  4. Step 4: Simplify right side
    7,149.90x = 23,810,821.15
  5. Step 5: Solve for x
    x = 23,810,821.15/7,149.90
  6. Step 6: Final answer
    x = 3,330.23

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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.