Home / 2,013.74-3,015.68-1,189.56

Finding the Fourth Proportional to 2,013.74, 3,015.68 and 1,189.56

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Solution

The fourth proportional to 2,013.74, 3,015.68 and 1,189.56 is: 1,781.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.74 : 3,015.68 = 1,189.56 : x
  2. Step 2: Convert to fraction form
    2,013.74/3,015.68 = 1,189.56/x
  3. Step 3: Cross multiply
    2,013.74x = 3,015.68 × 1,189.56
  4. Step 4: Simplify right side
    2,013.74x = 3,587,332.30
  5. Step 5: Solve for x
    x = 3,587,332.30/2,013.74
  6. Step 6: Final answer
    x = 1,781.43

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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.