Home / 3,669.78-5,504.61-1,720.62

Finding the Fourth Proportional to 3,669.78, 5,504.61 and 1,720.62

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Solution

The fourth proportional to 3,669.78, 5,504.61 and 1,720.62 is: 2,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.78 : 5,504.61 = 1,720.62 : x
  2. Step 2: Convert to fraction form
    3,669.78/5,504.61 = 1,720.62/x
  3. Step 3: Cross multiply
    3,669.78x = 5,504.61 × 1,720.62
  4. Step 4: Simplify right side
    3,669.78x = 9,471,342.06
  5. Step 5: Solve for x
    x = 9,471,342.06/3,669.78
  6. Step 6: Final answer
    x = 2,580.90

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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.