Home / 4,072.85-5,620.69-2,255.92

Finding the Fourth Proportional to 4,072.85, 5,620.69 and 2,255.92

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Solution

The fourth proportional to 4,072.85, 5,620.69 and 2,255.92 is: 3,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.85 : 5,620.69 = 2,255.92 : x
  2. Step 2: Convert to fraction form
    4,072.85/5,620.69 = 2,255.92/x
  3. Step 3: Cross multiply
    4,072.85x = 5,620.69 × 2,255.92
  4. Step 4: Simplify right side
    4,072.85x = 12,679,798.88
  5. Step 5: Solve for x
    x = 12,679,798.88/4,072.85
  6. Step 6: Final answer
    x = 3,113.25

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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.