Home / 3,112.76-4,296.12-1,786.52

Finding the Fourth Proportional to 3,112.76, 4,296.12 and 1,786.52

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Solution

The fourth proportional to 3,112.76, 4,296.12 and 1,786.52 is: 2,465.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.76 : 4,296.12 = 1,786.52 : x
  2. Step 2: Convert to fraction form
    3,112.76/4,296.12 = 1,786.52/x
  3. Step 3: Cross multiply
    3,112.76x = 4,296.12 × 1,786.52
  4. Step 4: Simplify right side
    3,112.76x = 7,675,104.30
  5. Step 5: Solve for x
    x = 7,675,104.30/3,112.76
  6. Step 6: Final answer
    x = 2,465.69

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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.