Home / 2,776.31-4,162.40-1,680.41

Finding the Fourth Proportional to 2,776.31, 4,162.40 and 1,680.41

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Solution

The fourth proportional to 2,776.31, 4,162.40 and 1,680.41 is: 2,519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.31 : 4,162.40 = 1,680.41 : x
  2. Step 2: Convert to fraction form
    2,776.31/4,162.40 = 1,680.41/x
  3. Step 3: Cross multiply
    2,776.31x = 4,162.40 × 1,680.41
  4. Step 4: Simplify right side
    2,776.31x = 6,994,540.59
  5. Step 5: Solve for x
    x = 6,994,540.59/2,776.31
  6. Step 6: Final answer
    x = 2,519.37

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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.