Home / 2,715.06-4,069.65-1,329.33

Finding the Fourth Proportional to 2,715.06, 4,069.65 and 1,329.33

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Solution

The fourth proportional to 2,715.06, 4,069.65 and 1,329.33 is: 1,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.06 : 4,069.65 = 1,329.33 : x
  2. Step 2: Convert to fraction form
    2,715.06/4,069.65 = 1,329.33/x
  3. Step 3: Cross multiply
    2,715.06x = 4,069.65 × 1,329.33
  4. Step 4: Simplify right side
    2,715.06x = 5,409,907.83
  5. Step 5: Solve for x
    x = 5,409,907.83/2,715.06
  6. Step 6: Final answer
    x = 1,992.56

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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.