Home / 7,166.90-10,745.69-2,784.80

Finding the Fourth Proportional to 7,166.90, 10,745.69 and 2,784.80

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Solution

The fourth proportional to 7,166.90, 10,745.69 and 2,784.80 is: 4,175.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166.90 : 10,745.69 = 2,784.80 : x
  2. Step 2: Convert to fraction form
    7,166.90/10,745.69 = 2,784.80/x
  3. Step 3: Cross multiply
    7,166.90x = 10,745.69 × 2,784.80
  4. Step 4: Simplify right side
    7,166.90x = 29,924,529.86
  5. Step 5: Solve for x
    x = 29,924,529.86/7,166.90
  6. Step 6: Final answer
    x = 4,175.38

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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.