Home / 4,072.57-5,620.35-2,279.94

Finding the Fourth Proportional to 4,072.57, 5,620.35 and 2,279.94

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Solution

The fourth proportional to 4,072.57, 5,620.35 and 2,279.94 is: 3,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.57 : 5,620.35 = 2,279.94 : x
  2. Step 2: Convert to fraction form
    4,072.57/5,620.35 = 2,279.94/x
  3. Step 3: Cross multiply
    4,072.57x = 5,620.35 × 2,279.94
  4. Step 4: Simplify right side
    4,072.57x = 12,814,048.25
  5. Step 5: Solve for x
    x = 12,814,048.25/4,072.57
  6. Step 6: Final answer
    x = 3,146.43

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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.