Home / 2,774.88-4,162.32-1,131.05

Finding the Fourth Proportional to 2,774.88, 4,162.32 and 1,131.05

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Solution

The fourth proportional to 2,774.88, 4,162.32 and 1,131.05 is: 1,696.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.88 : 4,162.32 = 1,131.05 : x
  2. Step 2: Convert to fraction form
    2,774.88/4,162.32 = 1,131.05/x
  3. Step 3: Cross multiply
    2,774.88x = 4,162.32 × 1,131.05
  4. Step 4: Simplify right side
    2,774.88x = 4,707,802.44
  5. Step 5: Solve for x
    x = 4,707,802.44/2,774.88
  6. Step 6: Final answer
    x = 1,696.58

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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.