Home / 2,987.22-4,120.83-1,744.50

Finding the Fourth Proportional to 2,987.22, 4,120.83 and 1,744.50

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Solution

The fourth proportional to 2,987.22, 4,120.83 and 1,744.50 is: 2,406.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.22 : 4,120.83 = 1,744.50 : x
  2. Step 2: Convert to fraction form
    2,987.22/4,120.83 = 1,744.50/x
  3. Step 3: Cross multiply
    2,987.22x = 4,120.83 × 1,744.50
  4. Step 4: Simplify right side
    2,987.22x = 7,188,787.94
  5. Step 5: Solve for x
    x = 7,188,787.94/2,987.22
  6. Step 6: Final answer
    x = 2,406.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.