Home / 1,110.25-1,665.26-698.16

Finding the Fourth Proportional to 1,110.25, 1,665.26 and 698.16

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Solution

The fourth proportional to 1,110.25, 1,665.26 and 698.16 is: 1,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.25 : 1,665.26 = 698.16 : x
  2. Step 2: Convert to fraction form
    1,110.25/1,665.26 = 698.16/x
  3. Step 3: Cross multiply
    1,110.25x = 1,665.26 × 698.16
  4. Step 4: Simplify right side
    1,110.25x = 1,162,623.29
  5. Step 5: Solve for x
    x = 1,162,623.29/1,110.25
  6. Step 6: Final answer
    x = 1,047.17

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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.