Home / 3,620.28-4,991.04-2,485.92

Finding the Fourth Proportional to 3,620.28, 4,991.04 and 2,485.92

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Solution

The fourth proportional to 3,620.28, 4,991.04 and 2,485.92 is: 3,427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.28 : 4,991.04 = 2,485.92 : x
  2. Step 2: Convert to fraction form
    3,620.28/4,991.04 = 2,485.92/x
  3. Step 3: Cross multiply
    3,620.28x = 4,991.04 × 2,485.92
  4. Step 4: Simplify right side
    3,620.28x = 12,407,326.16
  5. Step 5: Solve for x
    x = 12,407,326.16/3,620.28
  6. Step 6: Final answer
    x = 3,427.17

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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.