Home / 7,151.41-10,728.53-2,768.90

Finding the Fourth Proportional to 7,151.41, 10,728.53 and 2,768.90

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Solution

The fourth proportional to 7,151.41, 10,728.53 and 2,768.90 is: 4,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.41 : 10,728.53 = 2,768.90 : x
  2. Step 2: Convert to fraction form
    7,151.41/10,728.53 = 2,768.90/x
  3. Step 3: Cross multiply
    7,151.41x = 10,728.53 × 2,768.90
  4. Step 4: Simplify right side
    7,151.41x = 29,706,212.87
  5. Step 5: Solve for x
    x = 29,706,212.87/7,151.41
  6. Step 6: Final answer
    x = 4,153.90

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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.