Home / 2,560.70-3,844.56-1,328.96

Finding the Fourth Proportional to 2,560.70, 3,844.56 and 1,328.96

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Solution

The fourth proportional to 2,560.70, 3,844.56 and 1,328.96 is: 1,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.70 : 3,844.56 = 1,328.96 : x
  2. Step 2: Convert to fraction form
    2,560.70/3,844.56 = 1,328.96/x
  3. Step 3: Cross multiply
    2,560.70x = 3,844.56 × 1,328.96
  4. Step 4: Simplify right side
    2,560.70x = 5,109,266.46
  5. Step 5: Solve for x
    x = 5,109,266.46/2,560.70
  6. Step 6: Final answer
    x = 1,995.26

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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.