Home / 5,119.88-7,679.93-1,609.83

Finding the Fourth Proportional to 5,119.88, 7,679.93 and 1,609.83

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Solution

The fourth proportional to 5,119.88, 7,679.93 and 1,609.83 is: 2,414.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.88 : 7,679.93 = 1,609.83 : x
  2. Step 2: Convert to fraction form
    5,119.88/7,679.93 = 1,609.83/x
  3. Step 3: Cross multiply
    5,119.88x = 7,679.93 × 1,609.83
  4. Step 4: Simplify right side
    5,119.88x = 12,363,373.66
  5. Step 5: Solve for x
    x = 12,363,373.66/5,119.88
  6. Step 6: Final answer
    x = 2,414.78

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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.