Home / 1,327.69-1,986.01-1,229.28

Finding the Fourth Proportional to 1,327.69, 1,986.01 and 1,229.28

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Solution

The fourth proportional to 1,327.69, 1,986.01 and 1,229.28 is: 1,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.69 : 1,986.01 = 1,229.28 : x
  2. Step 2: Convert to fraction form
    1,327.69/1,986.01 = 1,229.28/x
  3. Step 3: Cross multiply
    1,327.69x = 1,986.01 × 1,229.28
  4. Step 4: Simplify right side
    1,327.69x = 2,441,362.37
  5. Step 5: Solve for x
    x = 2,441,362.37/1,327.69
  6. Step 6: Final answer
    x = 1,838.80

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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.