Home / 1,815.88-2,488.46-1,640.92

Finding the Fourth Proportional to 1,815.88, 2,488.46 and 1,640.92

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Solution

The fourth proportional to 1,815.88, 2,488.46 and 1,640.92 is: 2,248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.88 : 2,488.46 = 1,640.92 : x
  2. Step 2: Convert to fraction form
    1,815.88/2,488.46 = 1,640.92/x
  3. Step 3: Cross multiply
    1,815.88x = 2,488.46 × 1,640.92
  4. Step 4: Simplify right side
    1,815.88x = 4,083,352.43
  5. Step 5: Solve for x
    x = 4,083,352.43/1,815.88
  6. Step 6: Final answer
    x = 2,248.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.