Home / 2,921.56-4,377.38-1,764.88

Finding the Fourth Proportional to 2,921.56, 4,377.38 and 1,764.88

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Solution

The fourth proportional to 2,921.56, 4,377.38 and 1,764.88 is: 2,644.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.56 : 4,377.38 = 1,764.88 : x
  2. Step 2: Convert to fraction form
    2,921.56/4,377.38 = 1,764.88/x
  3. Step 3: Cross multiply
    2,921.56x = 4,377.38 × 1,764.88
  4. Step 4: Simplify right side
    2,921.56x = 7,725,550.41
  5. Step 5: Solve for x
    x = 7,725,550.41/2,921.56
  6. Step 6: Final answer
    x = 2,644.32

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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.