Home / 3,881.20-5,790.98-3,605.92

Finding the Fourth Proportional to 3,881.20, 5,790.98 and 3,605.92

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Solution

The fourth proportional to 3,881.20, 5,790.98 and 3,605.92 is: 5,380.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.20 : 5,790.98 = 3,605.92 : x
  2. Step 2: Convert to fraction form
    3,881.20/5,790.98 = 3,605.92/x
  3. Step 3: Cross multiply
    3,881.20x = 5,790.98 × 3,605.92
  4. Step 4: Simplify right side
    3,881.20x = 20,881,810.60
  5. Step 5: Solve for x
    x = 20,881,810.60/3,881.20
  6. Step 6: Final answer
    x = 5,380.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.