Home / 1,944.81-2,917.71-1,121.58

Finding the Fourth Proportional to 1,944.81, 2,917.71 and 1,121.58

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Solution

The fourth proportional to 1,944.81, 2,917.71 and 1,121.58 is: 1,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.81 : 2,917.71 = 1,121.58 : x
  2. Step 2: Convert to fraction form
    1,944.81/2,917.71 = 1,121.58/x
  3. Step 3: Cross multiply
    1,944.81x = 2,917.71 × 1,121.58
  4. Step 4: Simplify right side
    1,944.81x = 3,272,445.18
  5. Step 5: Solve for x
    x = 3,272,445.18/1,944.81
  6. Step 6: Final answer
    x = 1,682.66

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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.