Home / 3,630.91-5,447.08-1,291.03

Finding the Fourth Proportional to 3,630.91, 5,447.08 and 1,291.03

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Solution

The fourth proportional to 3,630.91, 5,447.08 and 1,291.03 is: 1,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.91 : 5,447.08 = 1,291.03 : x
  2. Step 2: Convert to fraction form
    3,630.91/5,447.08 = 1,291.03/x
  3. Step 3: Cross multiply
    3,630.91x = 5,447.08 × 1,291.03
  4. Step 4: Simplify right side
    3,630.91x = 7,032,343.69
  5. Step 5: Solve for x
    x = 7,032,343.69/3,630.91
  6. Step 6: Final answer
    x = 1,936.80

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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.