Home / 2,731.75-3,768.84-1,788.10

Finding the Fourth Proportional to 2,731.75, 3,768.84 and 1,788.10

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Solution

The fourth proportional to 2,731.75, 3,768.84 and 1,788.10 is: 2,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.75 : 3,768.84 = 1,788.10 : x
  2. Step 2: Convert to fraction form
    2,731.75/3,768.84 = 1,788.10/x
  3. Step 3: Cross multiply
    2,731.75x = 3,768.84 × 1,788.10
  4. Step 4: Simplify right side
    2,731.75x = 6,739,053.38
  5. Step 5: Solve for x
    x = 6,739,053.38/2,731.75
  6. Step 6: Final answer
    x = 2,466.94

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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.