Home / 2,228.96-3,076.16-1,915.24

Finding the Fourth Proportional to 2,228.96, 3,076.16 and 1,915.24

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Solution

The fourth proportional to 2,228.96, 3,076.16 and 1,915.24 is: 2,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.96 : 3,076.16 = 1,915.24 : x
  2. Step 2: Convert to fraction form
    2,228.96/3,076.16 = 1,915.24/x
  3. Step 3: Cross multiply
    2,228.96x = 3,076.16 × 1,915.24
  4. Step 4: Simplify right side
    2,228.96x = 5,891,584.68
  5. Step 5: Solve for x
    x = 5,891,584.68/2,228.96
  6. Step 6: Final answer
    x = 2,643.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.