Home / 2,615.48-3,923.01-1,229.12

Finding the Fourth Proportional to 2,615.48, 3,923.01 and 1,229.12

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Solution

The fourth proportional to 2,615.48, 3,923.01 and 1,229.12 is: 1,843.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.48 : 3,923.01 = 1,229.12 : x
  2. Step 2: Convert to fraction form
    2,615.48/3,923.01 = 1,229.12/x
  3. Step 3: Cross multiply
    2,615.48x = 3,923.01 × 1,229.12
  4. Step 4: Simplify right side
    2,615.48x = 4,821,830.44
  5. Step 5: Solve for x
    x = 4,821,830.44/2,615.48
  6. Step 6: Final answer
    x = 1,843.58

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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.