Home / 2,630.36-3,943.46-1,313.44

Finding the Fourth Proportional to 2,630.36, 3,943.46 and 1,313.44

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Solution

The fourth proportional to 2,630.36, 3,943.46 and 1,313.44 is: 1,969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.36 : 3,943.46 = 1,313.44 : x
  2. Step 2: Convert to fraction form
    2,630.36/3,943.46 = 1,313.44/x
  3. Step 3: Cross multiply
    2,630.36x = 3,943.46 × 1,313.44
  4. Step 4: Simplify right side
    2,630.36x = 5,179,478.39
  5. Step 5: Solve for x
    x = 5,179,478.39/2,630.36
  6. Step 6: Final answer
    x = 1,969.11

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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.