Home / 7,166.22-10,745.16-2,778.55

Finding the Fourth Proportional to 7,166.22, 10,745.16 and 2,778.55

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Solution

The fourth proportional to 7,166.22, 10,745.16 and 2,778.55 is: 4,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166.22 : 10,745.16 = 2,778.55 : x
  2. Step 2: Convert to fraction form
    7,166.22/10,745.16 = 2,778.55/x
  3. Step 3: Cross multiply
    7,166.22x = 10,745.16 × 2,778.55
  4. Step 4: Simplify right side
    7,166.22x = 29,855,987.48
  5. Step 5: Solve for x
    x = 29,855,987.48/7,166.22
  6. Step 6: Final answer
    x = 4,166.21

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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.