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Finding the Fourth Proportional to 7,172.05, 10,753.83 and 2,730.05

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Solution

The fourth proportional to 7,172.05, 10,753.83 and 2,730.05 is: 4,093.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.05 : 10,753.83 = 2,730.05 : x
  2. Step 2: Convert to fraction form
    7,172.05/10,753.83 = 2,730.05/x
  3. Step 3: Cross multiply
    7,172.05x = 10,753.83 × 2,730.05
  4. Step 4: Simplify right side
    7,172.05x = 29,358,493.59
  5. Step 5: Solve for x
    x = 29,358,493.59/7,172.05
  6. Step 6: Final answer
    x = 4,093.46

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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.