Home / 2,315.27-3,194.17-1,370.75

Finding the Fourth Proportional to 2,315.27, 3,194.17 and 1,370.75

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Solution

The fourth proportional to 2,315.27, 3,194.17 and 1,370.75 is: 1,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.27 : 3,194.17 = 1,370.75 : x
  2. Step 2: Convert to fraction form
    2,315.27/3,194.17 = 1,370.75/x
  3. Step 3: Cross multiply
    2,315.27x = 3,194.17 × 1,370.75
  4. Step 4: Simplify right side
    2,315.27x = 4,378,389.13
  5. Step 5: Solve for x
    x = 4,378,389.13/2,315.27
  6. Step 6: Final answer
    x = 1,891.09

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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.