Home / 7,160.96-10,745.36-2,778.59

Finding the Fourth Proportional to 7,160.96, 10,745.36 and 2,778.59

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Solution

The fourth proportional to 7,160.96, 10,745.36 and 2,778.59 is: 4,169.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.96 : 10,745.36 = 2,778.59 : x
  2. Step 2: Convert to fraction form
    7,160.96/10,745.36 = 2,778.59/x
  3. Step 3: Cross multiply
    7,160.96x = 10,745.36 × 2,778.59
  4. Step 4: Simplify right side
    7,160.96x = 29,856,973.23
  5. Step 5: Solve for x
    x = 29,856,973.23/7,160.96
  6. Step 6: Final answer
    x = 4,169.41

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1.5x scale

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.