Home / 3,611.30-4,980.04-2,195.18

Finding the Fourth Proportional to 3,611.30, 4,980.04 and 2,195.18

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Solution

The fourth proportional to 3,611.30, 4,980.04 and 2,195.18 is: 3,027.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.30 : 4,980.04 = 2,195.18 : x
  2. Step 2: Convert to fraction form
    3,611.30/4,980.04 = 2,195.18/x
  3. Step 3: Cross multiply
    3,611.30x = 4,980.04 × 2,195.18
  4. Step 4: Simplify right side
    3,611.30x = 10,932,084.21
  5. Step 5: Solve for x
    x = 10,932,084.21/3,611.30
  6. Step 6: Final answer
    x = 3,027.19

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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.