Home / 4,905.24-7,357.69-2,131.91

Finding the Fourth Proportional to 4,905.24, 7,357.69 and 2,131.91

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Solution

The fourth proportional to 4,905.24, 7,357.69 and 2,131.91 is: 3,197.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.24 : 7,357.69 = 2,131.91 : x
  2. Step 2: Convert to fraction form
    4,905.24/7,357.69 = 2,131.91/x
  3. Step 3: Cross multiply
    4,905.24x = 7,357.69 × 2,131.91
  4. Step 4: Simplify right side
    4,905.24x = 15,685,920.91
  5. Step 5: Solve for x
    x = 15,685,920.91/4,905.24
  6. Step 6: Final answer
    x = 3,197.79

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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.