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Finding the Fourth Proportional to 4,490.48, 6,739.23 and 3,113.48

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Solution

The fourth proportional to 4,490.48, 6,739.23 and 3,113.48 is: 4,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,490.48 : 6,739.23 = 3,113.48 : x
  2. Step 2: Convert to fraction form
    4,490.48/6,739.23 = 3,113.48/x
  3. Step 3: Cross multiply
    4,490.48x = 6,739.23 × 3,113.48
  4. Step 4: Simplify right side
    4,490.48x = 20,982,424.12
  5. Step 5: Solve for x
    x = 20,982,424.12/4,490.48
  6. Step 6: Final answer
    x = 4,672.65

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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.