Home / 7,110.50-10,665.72-2,179.92

Finding the Fourth Proportional to 7,110.50, 10,665.72 and 2,179.92

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Solution

The fourth proportional to 7,110.50, 10,665.72 and 2,179.92 is: 3,269.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.50 : 10,665.72 = 2,179.92 : x
  2. Step 2: Convert to fraction form
    7,110.50/10,665.72 = 2,179.92/x
  3. Step 3: Cross multiply
    7,110.50x = 10,665.72 × 2,179.92
  4. Step 4: Simplify right side
    7,110.50x = 23,250,416.34
  5. Step 5: Solve for x
    x = 23,250,416.34/7,110.50
  6. Step 6: Final answer
    x = 3,269.87

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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.