Home / 2,745.76-3,789.47-1,567

Finding the Fourth Proportional to 2,745.76, 3,789.47 and 1,567

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Solution

The fourth proportional to 2,745.76, 3,789.47 and 1,567 is: 2,162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.76 : 3,789.47 = 1,567 : x
  2. Step 2: Convert to fraction form
    2,745.76/3,789.47 = 1,567/x
  3. Step 3: Cross multiply
    2,745.76x = 3,789.47 × 1,567
  4. Step 4: Simplify right side
    2,745.76x = 5,938,099.49
  5. Step 5: Solve for x
    x = 5,938,099.49/2,745.76
  6. Step 6: Final answer
    x = 2,162.64

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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.