Home / 4,499.24-6,748.62-1,421

Finding the Fourth Proportional to 4,499.24, 6,748.62 and 1,421

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Solution

The fourth proportional to 4,499.24, 6,748.62 and 1,421 is: 2,131.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,499.24 : 6,748.62 = 1,421 : x
  2. Step 2: Convert to fraction form
    4,499.24/6,748.62 = 1,421/x
  3. Step 3: Cross multiply
    4,499.24x = 6,748.62 × 1,421
  4. Step 4: Simplify right side
    4,499.24x = 9,589,789.02
  5. Step 5: Solve for x
    x = 9,589,789.02/4,499.24
  6. Step 6: Final answer
    x = 2,131.42

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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.