Home / 2,188.15-3,283.07-2,181.33

Finding the Fourth Proportional to 2,188.15, 3,283.07 and 2,181.33

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Solution

The fourth proportional to 2,188.15, 3,283.07 and 2,181.33 is: 3,272.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.15 : 3,283.07 = 2,181.33 : x
  2. Step 2: Convert to fraction form
    2,188.15/3,283.07 = 2,181.33/x
  3. Step 3: Cross multiply
    2,188.15x = 3,283.07 × 2,181.33
  4. Step 4: Simplify right side
    2,188.15x = 7,161,448.18
  5. Step 5: Solve for x
    x = 7,161,448.18/2,188.15
  6. Step 6: Final answer
    x = 3,272.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.