Home / 3,811.08-5,719.86-2,718.12

Finding the Fourth Proportional to 3,811.08, 5,719.86 and 2,718.12

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Solution

The fourth proportional to 3,811.08, 5,719.86 and 2,718.12 is: 4,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.08 : 5,719.86 = 2,718.12 : x
  2. Step 2: Convert to fraction form
    3,811.08/5,719.86 = 2,718.12/x
  3. Step 3: Cross multiply
    3,811.08x = 5,719.86 × 2,718.12
  4. Step 4: Simplify right side
    3,811.08x = 15,547,265.86
  5. Step 5: Solve for x
    x = 15,547,265.86/3,811.08
  6. Step 6: Final answer
    x = 4,079.49

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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.