Home / 5,328.81-7,998.14-2,698.18

Finding the Fourth Proportional to 5,328.81, 7,998.14 and 2,698.18

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Solution

The fourth proportional to 5,328.81, 7,998.14 and 2,698.18 is: 4,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.81 : 7,998.14 = 2,698.18 : x
  2. Step 2: Convert to fraction form
    5,328.81/7,998.14 = 2,698.18/x
  3. Step 3: Cross multiply
    5,328.81x = 7,998.14 × 2,698.18
  4. Step 4: Simplify right side
    5,328.81x = 21,580,367.90
  5. Step 5: Solve for x
    x = 21,580,367.90/5,328.81
  6. Step 6: Final answer
    x = 4,049.76

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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.