Home / 2,188.06-3,020.19-1,489.84

Finding the Fourth Proportional to 2,188.06, 3,020.19 and 1,489.84

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Solution

The fourth proportional to 2,188.06, 3,020.19 and 1,489.84 is: 2,056.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.06 : 3,020.19 = 1,489.84 : x
  2. Step 2: Convert to fraction form
    2,188.06/3,020.19 = 1,489.84/x
  3. Step 3: Cross multiply
    2,188.06x = 3,020.19 × 1,489.84
  4. Step 4: Simplify right side
    2,188.06x = 4,499,599.87
  5. Step 5: Solve for x
    x = 4,499,599.87/2,188.06
  6. Step 6: Final answer
    x = 2,056.43

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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.