Home / 1,917.46-2,868.90-1,185.22

Finding the Fourth Proportional to 1,917.46, 2,868.90 and 1,185.22

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Solution

The fourth proportional to 1,917.46, 2,868.90 and 1,185.22 is: 1,773.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.46 : 2,868.90 = 1,185.22 : x
  2. Step 2: Convert to fraction form
    1,917.46/2,868.90 = 1,185.22/x
  3. Step 3: Cross multiply
    1,917.46x = 2,868.90 × 1,185.22
  4. Step 4: Simplify right side
    1,917.46x = 3,400,277.66
  5. Step 5: Solve for x
    x = 3,400,277.66/1,917.46
  6. Step 6: Final answer
    x = 1,773.32

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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.