Home / 7,705.22-11,552.97-3,320.42

Finding the Fourth Proportional to 7,705.22, 11,552.97 and 3,320.42

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Solution

The fourth proportional to 7,705.22, 11,552.97 and 3,320.42 is: 4,978.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.22 : 11,552.97 = 3,320.42 : x
  2. Step 2: Convert to fraction form
    7,705.22/11,552.97 = 3,320.42/x
  3. Step 3: Cross multiply
    7,705.22x = 11,552.97 × 3,320.42
  4. Step 4: Simplify right side
    7,705.22x = 38,360,712.65
  5. Step 5: Solve for x
    x = 38,360,712.65/7,705.22
  6. Step 6: Final answer
    x = 4,978.54

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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.