Home / 3,116.10-4,299.57-1,789.86

Finding the Fourth Proportional to 3,116.10, 4,299.57 and 1,789.86

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Solution

The fourth proportional to 3,116.10, 4,299.57 and 1,789.86 is: 2,469.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.10 : 4,299.57 = 1,789.86 : x
  2. Step 2: Convert to fraction form
    3,116.10/4,299.57 = 1,789.86/x
  3. Step 3: Cross multiply
    3,116.10x = 4,299.57 × 1,789.86
  4. Step 4: Simplify right side
    3,116.10x = 7,695,628.36
  5. Step 5: Solve for x
    x = 7,695,628.36/3,116.10
  6. Step 6: Final answer
    x = 2,469.63

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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.