Home / 6,145.38-9,219.60-2,860.80

Finding the Fourth Proportional to 6,145.38, 9,219.60 and 2,860.80

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Solution

The fourth proportional to 6,145.38, 9,219.60 and 2,860.80 is: 4,291.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.38 : 9,219.60 = 2,860.80 : x
  2. Step 2: Convert to fraction form
    6,145.38/9,219.60 = 2,860.80/x
  3. Step 3: Cross multiply
    6,145.38x = 9,219.60 × 2,860.80
  4. Step 4: Simplify right side
    6,145.38x = 26,375,431.68
  5. Step 5: Solve for x
    x = 26,375,431.68/6,145.38
  6. Step 6: Final answer
    x = 4,291.91

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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.