Home / 2,921.44-4,380.72-1,071.22

Finding the Fourth Proportional to 2,921.44, 4,380.72 and 1,071.22

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Solution

The fourth proportional to 2,921.44, 4,380.72 and 1,071.22 is: 1,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.44 : 4,380.72 = 1,071.22 : x
  2. Step 2: Convert to fraction form
    2,921.44/4,380.72 = 1,071.22/x
  3. Step 3: Cross multiply
    2,921.44x = 4,380.72 × 1,071.22
  4. Step 4: Simplify right side
    2,921.44x = 4,692,714.88
  5. Step 5: Solve for x
    x = 4,692,714.88/2,921.44
  6. Step 6: Final answer
    x = 1,606.30

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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.