Home / 1,415.82-2,119.41-1,049.70

Finding the Fourth Proportional to 1,415.82, 2,119.41 and 1,049.70

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Solution

The fourth proportional to 1,415.82, 2,119.41 and 1,049.70 is: 1,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.82 : 2,119.41 = 1,049.70 : x
  2. Step 2: Convert to fraction form
    1,415.82/2,119.41 = 1,049.70/x
  3. Step 3: Cross multiply
    1,415.82x = 2,119.41 × 1,049.70
  4. Step 4: Simplify right side
    1,415.82x = 2,224,744.68
  5. Step 5: Solve for x
    x = 2,224,744.68/1,415.82
  6. Step 6: Final answer
    x = 1,571.35

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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.