Home / 5,351.23-8,028.74-2,389.40

Finding the Fourth Proportional to 5,351.23, 8,028.74 and 2,389.40

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Solution

The fourth proportional to 5,351.23, 8,028.74 and 2,389.40 is: 3,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.23 : 8,028.74 = 2,389.40 : x
  2. Step 2: Convert to fraction form
    5,351.23/8,028.74 = 2,389.40/x
  3. Step 3: Cross multiply
    5,351.23x = 8,028.74 × 2,389.40
  4. Step 4: Simplify right side
    5,351.23x = 19,183,871.36
  5. Step 5: Solve for x
    x = 19,183,871.36/5,351.23
  6. Step 6: Final answer
    x = 3,584.95

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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.