Home / 3,190.77-4,401.77-2,013.57

Finding the Fourth Proportional to 3,190.77, 4,401.77 and 2,013.57

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Solution

The fourth proportional to 3,190.77, 4,401.77 and 2,013.57 is: 2,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.77 : 4,401.77 = 2,013.57 : x
  2. Step 2: Convert to fraction form
    3,190.77/4,401.77 = 2,013.57/x
  3. Step 3: Cross multiply
    3,190.77x = 4,401.77 × 2,013.57
  4. Step 4: Simplify right side
    3,190.77x = 8,863,261.95
  5. Step 5: Solve for x
    x = 8,863,261.95/3,190.77
  6. Step 6: Final answer
    x = 2,777.78

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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.