Home / 2,563.79-3,844.40-1,330.85

Finding the Fourth Proportional to 2,563.79, 3,844.40 and 1,330.85

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Solution

The fourth proportional to 2,563.79, 3,844.40 and 1,330.85 is: 1,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,563.79 : 3,844.40 = 1,330.85 : x
  2. Step 2: Convert to fraction form
    2,563.79/3,844.40 = 1,330.85/x
  3. Step 3: Cross multiply
    2,563.79x = 3,844.40 × 1,330.85
  4. Step 4: Simplify right side
    2,563.79x = 5,116,322.70
  5. Step 5: Solve for x
    x = 5,116,322.70/2,563.79
  6. Step 6: Final answer
    x = 1,995.61

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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.