Home / 1,961.78-2,941.73-1,140.27

Finding the Fourth Proportional to 1,961.78, 2,941.73 and 1,140.27

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Solution

The fourth proportional to 1,961.78, 2,941.73 and 1,140.27 is: 1,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.78 : 2,941.73 = 1,140.27 : x
  2. Step 2: Convert to fraction form
    1,961.78/2,941.73 = 1,140.27/x
  3. Step 3: Cross multiply
    1,961.78x = 2,941.73 × 1,140.27
  4. Step 4: Simplify right side
    1,961.78x = 3,354,360.77
  5. Step 5: Solve for x
    x = 3,354,360.77/1,961.78
  6. Step 6: Final answer
    x = 1,709.86

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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.