Home / 7,150.67-10,727.76-2,220.20

Finding the Fourth Proportional to 7,150.67, 10,727.76 and 2,220.20

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Solution

The fourth proportional to 7,150.67, 10,727.76 and 2,220.20 is: 3,330.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.67 : 10,727.76 = 2,220.20 : x
  2. Step 2: Convert to fraction form
    7,150.67/10,727.76 = 2,220.20/x
  3. Step 3: Cross multiply
    7,150.67x = 10,727.76 × 2,220.20
  4. Step 4: Simplify right side
    7,150.67x = 23,817,772.75
  5. Step 5: Solve for x
    x = 23,817,772.75/7,150.67
  6. Step 6: Final answer
    x = 3,330.84

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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.