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Finding the Fourth Proportional to 3,810.73, 5,721.56 and 2,490.33

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Solution

The fourth proportional to 3,810.73, 5,721.56 and 2,490.33 is: 3,739.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.73 : 5,721.56 = 2,490.33 : x
  2. Step 2: Convert to fraction form
    3,810.73/5,721.56 = 2,490.33/x
  3. Step 3: Cross multiply
    3,810.73x = 5,721.56 × 2,490.33
  4. Step 4: Simplify right side
    3,810.73x = 14,248,572.51
  5. Step 5: Solve for x
    x = 14,248,572.51/3,810.73
  6. Step 6: Final answer
    x = 3,739.07

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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.