Home / 7,092.96-9,788.46-3,949.20

Finding the Fourth Proportional to 7,092.96, 9,788.46 and 3,949.20

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Solution

The fourth proportional to 7,092.96, 9,788.46 and 3,949.20 is: 5,449.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.96 : 9,788.46 = 3,949.20 : x
  2. Step 2: Convert to fraction form
    7,092.96/9,788.46 = 3,949.20/x
  3. Step 3: Cross multiply
    7,092.96x = 9,788.46 × 3,949.20
  4. Step 4: Simplify right side
    7,092.96x = 38,656,586.23
  5. Step 5: Solve for x
    x = 38,656,586.23/7,092.96
  6. Step 6: Final answer
    x = 5,449.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.