Home / 2,857.22-4,279.87-2,298.92

Finding the Fourth Proportional to 2,857.22, 4,279.87 and 2,298.92

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Solution

The fourth proportional to 2,857.22, 4,279.87 and 2,298.92 is: 3,443.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.22 : 4,279.87 = 2,298.92 : x
  2. Step 2: Convert to fraction form
    2,857.22/4,279.87 = 2,298.92/x
  3. Step 3: Cross multiply
    2,857.22x = 4,279.87 × 2,298.92
  4. Step 4: Simplify right side
    2,857.22x = 9,839,078.74
  5. Step 5: Solve for x
    x = 9,839,078.74/2,857.22
  6. Step 6: Final answer
    x = 3,443.58

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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.