Home / 2,261.68-3,392.10-1,028.80

Finding the Fourth Proportional to 2,261.68, 3,392.10 and 1,028.80

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Solution

The fourth proportional to 2,261.68, 3,392.10 and 1,028.80 is: 1,543.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.68 : 3,392.10 = 1,028.80 : x
  2. Step 2: Convert to fraction form
    2,261.68/3,392.10 = 1,028.80/x
  3. Step 3: Cross multiply
    2,261.68x = 3,392.10 × 1,028.80
  4. Step 4: Simplify right side
    2,261.68x = 3,489,792.48
  5. Step 5: Solve for x
    x = 3,489,792.48/2,261.68
  6. Step 6: Final answer
    x = 1,543.01

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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.