Home / 4,119.70-5,685.18-2,351.30

Finding the Fourth Proportional to 4,119.70, 5,685.18 and 2,351.30

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Solution

The fourth proportional to 4,119.70, 5,685.18 and 2,351.30 is: 3,244.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.70 : 5,685.18 = 2,351.30 : x
  2. Step 2: Convert to fraction form
    4,119.70/5,685.18 = 2,351.30/x
  3. Step 3: Cross multiply
    4,119.70x = 5,685.18 × 2,351.30
  4. Step 4: Simplify right side
    4,119.70x = 13,367,563.73
  5. Step 5: Solve for x
    x = 13,367,563.73/4,119.70
  6. Step 6: Final answer
    x = 3,244.79

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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.