Home / 5,120.74-7,674.63-2,195.56

Finding the Fourth Proportional to 5,120.74, 7,674.63 and 2,195.56

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Solution

The fourth proportional to 5,120.74, 7,674.63 and 2,195.56 is: 3,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.74 : 7,674.63 = 2,195.56 : x
  2. Step 2: Convert to fraction form
    5,120.74/7,674.63 = 2,195.56/x
  3. Step 3: Cross multiply
    5,120.74x = 7,674.63 × 2,195.56
  4. Step 4: Simplify right side
    5,120.74x = 16,850,110.64
  5. Step 5: Solve for x
    x = 16,850,110.64/5,120.74
  6. Step 6: Final answer
    x = 3,290.56

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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.