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Finding the Fourth Proportional to 4,924.40, 7,370.40 and 3,822.80

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Solution

The fourth proportional to 4,924.40, 7,370.40 and 3,822.80 is: 5,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,924.40 : 7,370.40 = 3,822.80 : x
  2. Step 2: Convert to fraction form
    4,924.40/7,370.40 = 3,822.80/x
  3. Step 3: Cross multiply
    4,924.40x = 7,370.40 × 3,822.80
  4. Step 4: Simplify right side
    4,924.40x = 28,175,565.12
  5. Step 5: Solve for x
    x = 28,175,565.12/4,924.40
  6. Step 6: Final answer
    x = 5,721.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.