Home / 4,699.72-7,050.38-1,621

Finding the Fourth Proportional to 4,699.72, 7,050.38 and 1,621

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Solution

The fourth proportional to 4,699.72, 7,050.38 and 1,621 is: 2,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.72 : 7,050.38 = 1,621 : x
  2. Step 2: Convert to fraction form
    4,699.72/7,050.38 = 1,621/x
  3. Step 3: Cross multiply
    4,699.72x = 7,050.38 × 1,621
  4. Step 4: Simplify right side
    4,699.72x = 11,428,665.98
  5. Step 5: Solve for x
    x = 11,428,665.98/4,699.72
  6. Step 6: Final answer
    x = 2,431.78

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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.