Home / 7,144.13-10,718.55-2,761.62

Finding the Fourth Proportional to 7,144.13, 10,718.55 and 2,761.62

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Solution

The fourth proportional to 7,144.13, 10,718.55 and 2,761.62 is: 4,143.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.13 : 10,718.55 = 2,761.62 : x
  2. Step 2: Convert to fraction form
    7,144.13/10,718.55 = 2,761.62/x
  3. Step 3: Cross multiply
    7,144.13x = 10,718.55 × 2,761.62
  4. Step 4: Simplify right side
    7,144.13x = 29,600,562.05
  5. Step 5: Solve for x
    x = 29,600,562.05/7,144.13
  6. Step 6: Final answer
    x = 4,143.34

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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.