Home / 2,735.97-3,775.78-1,557.21

Finding the Fourth Proportional to 2,735.97, 3,775.78 and 1,557.21

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Solution

The fourth proportional to 2,735.97, 3,775.78 and 1,557.21 is: 2,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,735.97 : 3,775.78 = 1,557.21 : x
  2. Step 2: Convert to fraction form
    2,735.97/3,775.78 = 1,557.21/x
  3. Step 3: Cross multiply
    2,735.97x = 3,775.78 × 1,557.21
  4. Step 4: Simplify right side
    2,735.97x = 5,879,682.37
  5. Step 5: Solve for x
    x = 5,879,682.37/2,735.97
  6. Step 6: Final answer
    x = 2,149.03

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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.