Home / 1,944.26-2,919.90-1,215.26

Finding the Fourth Proportional to 1,944.26, 2,919.90 and 1,215.26

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Solution

The fourth proportional to 1,944.26, 2,919.90 and 1,215.26 is: 1,825.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.26 : 2,919.90 = 1,215.26 : x
  2. Step 2: Convert to fraction form
    1,944.26/2,919.90 = 1,215.26/x
  3. Step 3: Cross multiply
    1,944.26x = 2,919.90 × 1,215.26
  4. Step 4: Simplify right side
    1,944.26x = 3,548,437.67
  5. Step 5: Solve for x
    x = 3,548,437.67/1,944.26
  6. Step 6: Final answer
    x = 1,825.08

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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.