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Finding the Fourth Proportional to 5,878.62, 8,821.40 and 2,183.45

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Solution

The fourth proportional to 5,878.62, 8,821.40 and 2,183.45 is: 3,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.62 : 8,821.40 = 2,183.45 : x
  2. Step 2: Convert to fraction form
    5,878.62/8,821.40 = 2,183.45/x
  3. Step 3: Cross multiply
    5,878.62x = 8,821.40 × 2,183.45
  4. Step 4: Simplify right side
    5,878.62x = 19,261,030.81
  5. Step 5: Solve for x
    x = 19,261,030.81/5,878.62
  6. Step 6: Final answer
    x = 3,276.45

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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.