Home / 2,917.11-4,025.85-1,640.91

Finding the Fourth Proportional to 2,917.11, 4,025.85 and 1,640.91

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Solution

The fourth proportional to 2,917.11, 4,025.85 and 1,640.91 is: 2,264.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.11 : 4,025.85 = 1,640.91 : x
  2. Step 2: Convert to fraction form
    2,917.11/4,025.85 = 1,640.91/x
  3. Step 3: Cross multiply
    2,917.11x = 4,025.85 × 1,640.91
  4. Step 4: Simplify right side
    2,917.11x = 6,606,053.05
  5. Step 5: Solve for x
    x = 6,606,053.05/2,917.11
  6. Step 6: Final answer
    x = 2,264.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.