Home / 1,469.26-2,203.55-429.04

Finding the Fourth Proportional to 1,469.26, 2,203.55 and 429.04

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Solution

The fourth proportional to 1,469.26, 2,203.55 and 429.04 is: 643.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.26 : 2,203.55 = 429.04 : x
  2. Step 2: Convert to fraction form
    1,469.26/2,203.55 = 429.04/x
  3. Step 3: Cross multiply
    1,469.26x = 2,203.55 × 429.04
  4. Step 4: Simplify right side
    1,469.26x = 945,408.95
  5. Step 5: Solve for x
    x = 945,408.95/1,469.26
  6. Step 6: Final answer
    x = 643.46

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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.