Home / 1,372.13-2,059.14-1,189.34

Finding the Fourth Proportional to 1,372.13, 2,059.14 and 1,189.34

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Solution

The fourth proportional to 1,372.13, 2,059.14 and 1,189.34 is: 1,784.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.13 : 2,059.14 = 1,189.34 : x
  2. Step 2: Convert to fraction form
    1,372.13/2,059.14 = 1,189.34/x
  3. Step 3: Cross multiply
    1,372.13x = 2,059.14 × 1,189.34
  4. Step 4: Simplify right side
    1,372.13x = 2,449,017.57
  5. Step 5: Solve for x
    x = 2,449,017.57/1,372.13
  6. Step 6: Final answer
    x = 1,784.83

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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.