Home / 2,921.76-4,382.46-1,190.34

Finding the Fourth Proportional to 2,921.76, 4,382.46 and 1,190.34

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Solution

The fourth proportional to 2,921.76, 4,382.46 and 1,190.34 is: 1,785.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.76 : 4,382.46 = 1,190.34 : x
  2. Step 2: Convert to fraction form
    2,921.76/4,382.46 = 1,190.34/x
  3. Step 3: Cross multiply
    2,921.76x = 4,382.46 × 1,190.34
  4. Step 4: Simplify right side
    2,921.76x = 5,216,617.44
  5. Step 5: Solve for x
    x = 5,216,617.44/2,921.76
  6. Step 6: Final answer
    x = 1,785.44

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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.