Home / 2,254.64-3,388.10-1,215.41

Finding the Fourth Proportional to 2,254.64, 3,388.10 and 1,215.41

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Solution

The fourth proportional to 2,254.64, 3,388.10 and 1,215.41 is: 1,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.64 : 3,388.10 = 1,215.41 : x
  2. Step 2: Convert to fraction form
    2,254.64/3,388.10 = 1,215.41/x
  3. Step 3: Cross multiply
    2,254.64x = 3,388.10 × 1,215.41
  4. Step 4: Simplify right side
    2,254.64x = 4,117,907.60
  5. Step 5: Solve for x
    x = 4,117,907.60/2,254.64
  6. Step 6: Final answer
    x = 1,826.42

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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.