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Finding the Fourth Proportional to 4,069.80, 6,105.80 and 1,729.92

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Solution

The fourth proportional to 4,069.80, 6,105.80 and 1,729.92 is: 2,595.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,069.80 : 6,105.80 = 1,729.92 : x
  2. Step 2: Convert to fraction form
    4,069.80/6,105.80 = 1,729.92/x
  3. Step 3: Cross multiply
    4,069.80x = 6,105.80 × 1,729.92
  4. Step 4: Simplify right side
    4,069.80x = 10,562,545.54
  5. Step 5: Solve for x
    x = 10,562,545.54/4,069.80
  6. Step 6: Final answer
    x = 2,595.35

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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.