Home / 5,120.82-7,685.32-2,348.79

Finding the Fourth Proportional to 5,120.82, 7,685.32 and 2,348.79

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Solution

The fourth proportional to 5,120.82, 7,685.32 and 2,348.79 is: 3,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.82 : 7,685.32 = 2,348.79 : x
  2. Step 2: Convert to fraction form
    5,120.82/7,685.32 = 2,348.79/x
  3. Step 3: Cross multiply
    5,120.82x = 7,685.32 × 2,348.79
  4. Step 4: Simplify right side
    5,120.82x = 18,051,202.76
  5. Step 5: Solve for x
    x = 18,051,202.76/5,120.82
  6. Step 6: Final answer
    x = 3,525.06

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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.