Home / 4,747.24-7,120.38-1,669

Finding the Fourth Proportional to 4,747.24, 7,120.38 and 1,669

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Solution

The fourth proportional to 4,747.24, 7,120.38 and 1,669 is: 2,503.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.24 : 7,120.38 = 1,669 : x
  2. Step 2: Convert to fraction form
    4,747.24/7,120.38 = 1,669/x
  3. Step 3: Cross multiply
    4,747.24x = 7,120.38 × 1,669
  4. Step 4: Simplify right side
    4,747.24x = 11,883,914.22
  5. Step 5: Solve for x
    x = 11,883,914.22/4,747.24
  6. Step 6: Final answer
    x = 2,503.33

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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.