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Finding the Fourth Proportional to 3,420.33, 4,721.23 and 2,004.47

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Solution

The fourth proportional to 3,420.33, 4,721.23 and 2,004.47 is: 2,766.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.33 : 4,721.23 = 2,004.47 : x
  2. Step 2: Convert to fraction form
    3,420.33/4,721.23 = 2,004.47/x
  3. Step 3: Cross multiply
    3,420.33x = 4,721.23 × 2,004.47
  4. Step 4: Simplify right side
    3,420.33x = 9,463,563.90
  5. Step 5: Solve for x
    x = 9,463,563.90/3,420.33
  6. Step 6: Final answer
    x = 2,766.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.