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Finding the Fourth Proportional to 7,151.68, 10,724.48 and 2,768.32

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Solution

The fourth proportional to 7,151.68, 10,724.48 and 2,768.32 is: 4,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.68 : 10,724.48 = 2,768.32 : x
  2. Step 2: Convert to fraction form
    7,151.68/10,724.48 = 2,768.32/x
  3. Step 3: Cross multiply
    7,151.68x = 10,724.48 × 2,768.32
  4. Step 4: Simplify right side
    7,151.68x = 29,688,792.47
  5. Step 5: Solve for x
    x = 29,688,792.47/7,151.68
  6. Step 6: Final answer
    x = 4,151.30

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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.