Home / 1,351.14-1,862.56-1,085.49

Finding the Fourth Proportional to 1,351.14, 1,862.56 and 1,085.49

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Solution

The fourth proportional to 1,351.14, 1,862.56 and 1,085.49 is: 1,496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.14 : 1,862.56 = 1,085.49 : x
  2. Step 2: Convert to fraction form
    1,351.14/1,862.56 = 1,085.49/x
  3. Step 3: Cross multiply
    1,351.14x = 1,862.56 × 1,085.49
  4. Step 4: Simplify right side
    1,351.14x = 2,021,786.66
  5. Step 5: Solve for x
    x = 2,021,786.66/1,351.14
  6. Step 6: Final answer
    x = 1,496.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.