Home / 1,617.24-2,422.98-1,399.80

Finding the Fourth Proportional to 1,617.24, 2,422.98 and 1,399.80

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Solution

The fourth proportional to 1,617.24, 2,422.98 and 1,399.80 is: 2,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.24 : 2,422.98 = 1,399.80 : x
  2. Step 2: Convert to fraction form
    1,617.24/2,422.98 = 1,399.80/x
  3. Step 3: Cross multiply
    1,617.24x = 2,422.98 × 1,399.80
  4. Step 4: Simplify right side
    1,617.24x = 3,391,687.40
  5. Step 5: Solve for x
    x = 3,391,687.40/1,617.24
  6. Step 6: Final answer
    x = 2,097.21

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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.