Home / 2,782.19-4,170.14-1,137.84

Finding the Fourth Proportional to 2,782.19, 4,170.14 and 1,137.84

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Solution

The fourth proportional to 2,782.19, 4,170.14 and 1,137.84 is: 1,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.19 : 4,170.14 = 1,137.84 : x
  2. Step 2: Convert to fraction form
    2,782.19/4,170.14 = 1,137.84/x
  3. Step 3: Cross multiply
    2,782.19x = 4,170.14 × 1,137.84
  4. Step 4: Simplify right side
    2,782.19x = 4,744,954.94
  5. Step 5: Solve for x
    x = 4,744,954.94/2,782.19
  6. Step 6: Final answer
    x = 1,705.47

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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.