Home / 3,718.14-5,131.04-2,039.69

Finding the Fourth Proportional to 3,718.14, 5,131.04 and 2,039.69

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Solution

The fourth proportional to 3,718.14, 5,131.04 and 2,039.69 is: 2,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.14 : 5,131.04 = 2,039.69 : x
  2. Step 2: Convert to fraction form
    3,718.14/5,131.04 = 2,039.69/x
  3. Step 3: Cross multiply
    3,718.14x = 5,131.04 × 2,039.69
  4. Step 4: Simplify right side
    3,718.14x = 10,465,695.12
  5. Step 5: Solve for x
    x = 10,465,695.12/3,718.14
  6. Step 6: Final answer
    x = 2,814.77

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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.