Home / 3,243.05-4,855.20-1,904.79

Finding the Fourth Proportional to 3,243.05, 4,855.20 and 1,904.79

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Solution

The fourth proportional to 3,243.05, 4,855.20 and 1,904.79 is: 2,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.05 : 4,855.20 = 1,904.79 : x
  2. Step 2: Convert to fraction form
    3,243.05/4,855.20 = 1,904.79/x
  3. Step 3: Cross multiply
    3,243.05x = 4,855.20 × 1,904.79
  4. Step 4: Simplify right side
    3,243.05x = 9,248,136.41
  5. Step 5: Solve for x
    x = 9,248,136.41/3,243.05
  6. Step 6: Final answer
    x = 2,851.68

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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.