Home / 3,718.36-5,131.23-2,039.71

Finding the Fourth Proportional to 3,718.36, 5,131.23 and 2,039.71

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Solution

The fourth proportional to 3,718.36, 5,131.23 and 2,039.71 is: 2,814.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.36 : 5,131.23 = 2,039.71 : x
  2. Step 2: Convert to fraction form
    3,718.36/5,131.23 = 2,039.71/x
  3. Step 3: Cross multiply
    3,718.36x = 5,131.23 × 2,039.71
  4. Step 4: Simplify right side
    3,718.36x = 10,466,221.14
  5. Step 5: Solve for x
    x = 10,466,221.14/3,718.36
  6. Step 6: Final answer
    x = 2,814.74

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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.