Home / 2,639.56-3,960.66-1,762.54

Finding the Fourth Proportional to 2,639.56, 3,960.66 and 1,762.54

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Solution

The fourth proportional to 2,639.56, 3,960.66 and 1,762.54 is: 2,644.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.56 : 3,960.66 = 1,762.54 : x
  2. Step 2: Convert to fraction form
    2,639.56/3,960.66 = 1,762.54/x
  3. Step 3: Cross multiply
    2,639.56x = 3,960.66 × 1,762.54
  4. Step 4: Simplify right side
    2,639.56x = 6,980,821.68
  5. Step 5: Solve for x
    x = 6,980,821.68/2,639.56
  6. Step 6: Final answer
    x = 2,644.69

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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.