Home / 2,627.30-3,943.36-1,329.68

Finding the Fourth Proportional to 2,627.30, 3,943.36 and 1,329.68

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Solution

The fourth proportional to 2,627.30, 3,943.36 and 1,329.68 is: 1,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,627.30 : 3,943.36 = 1,329.68 : x
  2. Step 2: Convert to fraction form
    2,627.30/3,943.36 = 1,329.68/x
  3. Step 3: Cross multiply
    2,627.30x = 3,943.36 × 1,329.68
  4. Step 4: Simplify right side
    2,627.30x = 5,243,406.92
  5. Step 5: Solve for x
    x = 5,243,406.92/2,627.30
  6. Step 6: Final answer
    x = 1,995.74

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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.