Home / 3,971.20-5,477.22-2,571.52

Finding the Fourth Proportional to 3,971.20, 5,477.22 and 2,571.52

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Solution

The fourth proportional to 3,971.20, 5,477.22 and 2,571.52 is: 3,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.20 : 5,477.22 = 2,571.52 : x
  2. Step 2: Convert to fraction form
    3,971.20/5,477.22 = 2,571.52/x
  3. Step 3: Cross multiply
    3,971.20x = 5,477.22 × 2,571.52
  4. Step 4: Simplify right side
    3,971.20x = 14,084,780.77
  5. Step 5: Solve for x
    x = 14,084,780.77/3,971.20
  6. Step 6: Final answer
    x = 3,546.73

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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.