Home / 2,718.28-4,078.86-2,072.92

Finding the Fourth Proportional to 2,718.28, 4,078.86 and 2,072.92

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Solution

The fourth proportional to 2,718.28, 4,078.86 and 2,072.92 is: 3,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.28 : 4,078.86 = 2,072.92 : x
  2. Step 2: Convert to fraction form
    2,718.28/4,078.86 = 2,072.92/x
  3. Step 3: Cross multiply
    2,718.28x = 4,078.86 × 2,072.92
  4. Step 4: Simplify right side
    2,718.28x = 8,455,150.47
  5. Step 5: Solve for x
    x = 8,455,150.47/2,718.28
  6. Step 6: Final answer
    x = 3,110.48

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1.5x scale

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.