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Finding the Fourth Proportional to 3,798.36, 5,700.78 and 1,721.52

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Solution

The fourth proportional to 3,798.36, 5,700.78 and 1,721.52 is: 2,583.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.36 : 5,700.78 = 1,721.52 : x
  2. Step 2: Convert to fraction form
    3,798.36/5,700.78 = 1,721.52/x
  3. Step 3: Cross multiply
    3,798.36x = 5,700.78 × 1,721.52
  4. Step 4: Simplify right side
    3,798.36x = 9,814,006.79
  5. Step 5: Solve for x
    x = 9,814,006.79/3,798.36
  6. Step 6: Final answer
    x = 2,583.75

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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.