Home / 2,015.10-3,022.84-698.65

Finding the Fourth Proportional to 2,015.10, 3,022.84 and 698.65

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Solution

The fourth proportional to 2,015.10, 3,022.84 and 698.65 is: 1,048.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.10 : 3,022.84 = 698.65 : x
  2. Step 2: Convert to fraction form
    2,015.10/3,022.84 = 698.65/x
  3. Step 3: Cross multiply
    2,015.10x = 3,022.84 × 698.65
  4. Step 4: Simplify right side
    2,015.10x = 2,111,899.61
  5. Step 5: Solve for x
    x = 2,111,899.61/2,015.10
  6. Step 6: Final answer
    x = 1,048.04

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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.