Home / 1,698.39-2,553.75-1,563.06

Finding the Fourth Proportional to 1,698.39, 2,553.75 and 1,563.06

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Solution

The fourth proportional to 1,698.39, 2,553.75 and 1,563.06 is: 2,350.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.39 : 2,553.75 = 1,563.06 : x
  2. Step 2: Convert to fraction form
    1,698.39/2,553.75 = 1,563.06/x
  3. Step 3: Cross multiply
    1,698.39x = 2,553.75 × 1,563.06
  4. Step 4: Simplify right side
    1,698.39x = 3,991,664.48
  5. Step 5: Solve for x
    x = 3,991,664.48/1,698.39
  6. Step 6: Final answer
    x = 2,350.26

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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.