Home / 1,815.31-2,722.92-1,454.46

Finding the Fourth Proportional to 1,815.31, 2,722.92 and 1,454.46

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Solution

The fourth proportional to 1,815.31, 2,722.92 and 1,454.46 is: 2,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.31 : 2,722.92 = 1,454.46 : x
  2. Step 2: Convert to fraction form
    1,815.31/2,722.92 = 1,454.46/x
  3. Step 3: Cross multiply
    1,815.31x = 2,722.92 × 1,454.46
  4. Step 4: Simplify right side
    1,815.31x = 3,960,378.22
  5. Step 5: Solve for x
    x = 3,960,378.22/1,815.31
  6. Step 6: Final answer
    x = 2,181.65

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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.