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Finding the Fourth Proportional to 7,179.77, 10,771.38 and 3,477.68

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Solution

The fourth proportional to 7,179.77, 10,771.38 and 3,477.68 is: 5,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.77 : 10,771.38 = 3,477.68 : x
  2. Step 2: Convert to fraction form
    7,179.77/10,771.38 = 3,477.68/x
  3. Step 3: Cross multiply
    7,179.77x = 10,771.38 × 3,477.68
  4. Step 4: Simplify right side
    7,179.77x = 37,459,358.94
  5. Step 5: Solve for x
    x = 37,459,358.94/7,179.77
  6. Step 6: Final answer
    x = 5,217.35

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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.