Home / 2,014.80-3,022.20-698.55

Finding the Fourth Proportional to 2,014.80, 3,022.20 and 698.55

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Solution

The fourth proportional to 2,014.80, 3,022.20 and 698.55 is: 1,047.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.80 : 3,022.20 = 698.55 : x
  2. Step 2: Convert to fraction form
    2,014.80/3,022.20 = 698.55/x
  3. Step 3: Cross multiply
    2,014.80x = 3,022.20 × 698.55
  4. Step 4: Simplify right side
    2,014.80x = 2,111,157.81
  5. Step 5: Solve for x
    x = 2,111,157.81/2,014.80
  6. Step 6: Final answer
    x = 1,047.83

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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.