Home / 3,639.53-5,455.51-2,469.64

Finding the Fourth Proportional to 3,639.53, 5,455.51 and 2,469.64

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Solution

The fourth proportional to 3,639.53, 5,455.51 and 2,469.64 is: 3,701.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.53 : 5,455.51 = 2,469.64 : x
  2. Step 2: Convert to fraction form
    3,639.53/5,455.51 = 2,469.64/x
  3. Step 3: Cross multiply
    3,639.53x = 5,455.51 × 2,469.64
  4. Step 4: Simplify right side
    3,639.53x = 13,473,151.89
  5. Step 5: Solve for x
    x = 13,473,151.89/3,639.53
  6. Step 6: Final answer
    x = 3,701.89

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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.