Home / 2,208.47-3,319.58-1,391.99

Finding the Fourth Proportional to 2,208.47, 3,319.58 and 1,391.99

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Solution

The fourth proportional to 2,208.47, 3,319.58 and 1,391.99 is: 2,092.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.47 : 3,319.58 = 1,391.99 : x
  2. Step 2: Convert to fraction form
    2,208.47/3,319.58 = 1,391.99/x
  3. Step 3: Cross multiply
    2,208.47x = 3,319.58 × 1,391.99
  4. Step 4: Simplify right side
    2,208.47x = 4,620,809.05
  5. Step 5: Solve for x
    x = 4,620,809.05/2,208.47
  6. Step 6: Final answer
    x = 2,092.32

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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.