Home / 2,188.14-3,282.30-889.50

Finding the Fourth Proportional to 2,188.14, 3,282.30 and 889.50

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Solution

The fourth proportional to 2,188.14, 3,282.30 and 889.50 is: 1,334.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.14 : 3,282.30 = 889.50 : x
  2. Step 2: Convert to fraction form
    2,188.14/3,282.30 = 889.50/x
  3. Step 3: Cross multiply
    2,188.14x = 3,282.30 × 889.50
  4. Step 4: Simplify right side
    2,188.14x = 2,919,605.85
  5. Step 5: Solve for x
    x = 2,919,605.85/2,188.14
  6. Step 6: Final answer
    x = 1,334.29

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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.