Home / 3,120.93-4,306.77-2,072.25

Finding the Fourth Proportional to 3,120.93, 4,306.77 and 2,072.25

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Solution

The fourth proportional to 3,120.93, 4,306.77 and 2,072.25 is: 2,859.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.93 : 4,306.77 = 2,072.25 : x
  2. Step 2: Convert to fraction form
    3,120.93/4,306.77 = 2,072.25/x
  3. Step 3: Cross multiply
    3,120.93x = 4,306.77 × 2,072.25
  4. Step 4: Simplify right side
    3,120.93x = 8,924,704.13
  5. Step 5: Solve for x
    x = 8,924,704.13/3,120.93
  6. Step 6: Final answer
    x = 2,859.63

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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.