Home / 1,518.35-2,104.11-1,489.19

Finding the Fourth Proportional to 1,518.35, 2,104.11 and 1,489.19

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Solution

The fourth proportional to 1,518.35, 2,104.11 and 1,489.19 is: 2,063.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.35 : 2,104.11 = 1,489.19 : x
  2. Step 2: Convert to fraction form
    1,518.35/2,104.11 = 1,489.19/x
  3. Step 3: Cross multiply
    1,518.35x = 2,104.11 × 1,489.19
  4. Step 4: Simplify right side
    1,518.35x = 3,133,409.05
  5. Step 5: Solve for x
    x = 3,133,409.05/1,518.35
  6. Step 6: Final answer
    x = 2,063.70

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.