Home / 4,288.70-5,917.11-2,519.30

Finding the Fourth Proportional to 4,288.70, 5,917.11 and 2,519.30

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Solution

The fourth proportional to 4,288.70, 5,917.11 and 2,519.30 is: 3,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.70 : 5,917.11 = 2,519.30 : x
  2. Step 2: Convert to fraction form
    4,288.70/5,917.11 = 2,519.30/x
  3. Step 3: Cross multiply
    4,288.70x = 5,917.11 × 2,519.30
  4. Step 4: Simplify right side
    4,288.70x = 14,906,975.22
  5. Step 5: Solve for x
    x = 14,906,975.22/4,288.70
  6. Step 6: Final answer
    x = 3,475.87

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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.