Home / 5,017.70-7,519.33-2,821.79

Finding the Fourth Proportional to 5,017.70, 7,519.33 and 2,821.79

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Solution

The fourth proportional to 5,017.70, 7,519.33 and 2,821.79 is: 4,228.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,017.70 : 7,519.33 = 2,821.79 : x
  2. Step 2: Convert to fraction form
    5,017.70/7,519.33 = 2,821.79/x
  3. Step 3: Cross multiply
    5,017.70x = 7,519.33 × 2,821.79
  4. Step 4: Simplify right side
    5,017.70x = 21,217,950.23
  5. Step 5: Solve for x
    x = 21,217,950.23/5,017.70
  6. Step 6: Final answer
    x = 4,228.62

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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.