Home / 3,629.80-5,431.74-2,904.04

Finding the Fourth Proportional to 3,629.80, 5,431.74 and 2,904.04

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Solution

The fourth proportional to 3,629.80, 5,431.74 and 2,904.04 is: 4,345.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.80 : 5,431.74 = 2,904.04 : x
  2. Step 2: Convert to fraction form
    3,629.80/5,431.74 = 2,904.04/x
  3. Step 3: Cross multiply
    3,629.80x = 5,431.74 × 2,904.04
  4. Step 4: Simplify right side
    3,629.80x = 15,773,990.23
  5. Step 5: Solve for x
    x = 15,773,990.23/3,629.80
  6. Step 6: Final answer
    x = 4,345.69

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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.