Home / 3,120.67-4,305.43-2,002.24

Finding the Fourth Proportional to 3,120.67, 4,305.43 and 2,002.24

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Solution

The fourth proportional to 3,120.67, 4,305.43 and 2,002.24 is: 2,762.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.67 : 4,305.43 = 2,002.24 : x
  2. Step 2: Convert to fraction form
    3,120.67/4,305.43 = 2,002.24/x
  3. Step 3: Cross multiply
    3,120.67x = 4,305.43 × 2,002.24
  4. Step 4: Simplify right side
    3,120.67x = 8,620,504.16
  5. Step 5: Solve for x
    x = 8,620,504.16/3,120.67
  6. Step 6: Final answer
    x = 2,762.39

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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.