Home / 2,783.82-4,175.93-1,687.22

Finding the Fourth Proportional to 2,783.82, 4,175.93 and 1,687.22

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Solution

The fourth proportional to 2,783.82, 4,175.93 and 1,687.22 is: 2,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.82 : 4,175.93 = 1,687.22 : x
  2. Step 2: Convert to fraction form
    2,783.82/4,175.93 = 1,687.22/x
  3. Step 3: Cross multiply
    2,783.82x = 4,175.93 × 1,687.22
  4. Step 4: Simplify right side
    2,783.82x = 7,045,695.95
  5. Step 5: Solve for x
    x = 7,045,695.95/2,783.82
  6. Step 6: Final answer
    x = 2,530.95

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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.