Home / 3,131.15-4,696.73-2,511.80

Finding the Fourth Proportional to 3,131.15, 4,696.73 and 2,511.80

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Solution

The fourth proportional to 3,131.15, 4,696.73 and 2,511.80 is: 3,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.15 : 4,696.73 = 2,511.80 : x
  2. Step 2: Convert to fraction form
    3,131.15/4,696.73 = 2,511.80/x
  3. Step 3: Cross multiply
    3,131.15x = 4,696.73 × 2,511.80
  4. Step 4: Simplify right side
    3,131.15x = 11,797,210.37
  5. Step 5: Solve for x
    x = 11,797,210.37/3,131.15
  6. Step 6: Final answer
    x = 3,767.70

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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.