Home / 5,165.39-7,735.76-2,821.89

Finding the Fourth Proportional to 5,165.39, 7,735.76 and 2,821.89

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Solution

The fourth proportional to 5,165.39, 7,735.76 and 2,821.89 is: 4,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.39 : 7,735.76 = 2,821.89 : x
  2. Step 2: Convert to fraction form
    5,165.39/7,735.76 = 2,821.89/x
  3. Step 3: Cross multiply
    5,165.39x = 7,735.76 × 2,821.89
  4. Step 4: Simplify right side
    5,165.39x = 21,829,463.79
  5. Step 5: Solve for x
    x = 21,829,463.79/5,165.39
  6. Step 6: Final answer
    x = 4,226.10

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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.