Home / 1,969.22-2,717.56-1,085.02

Finding the Fourth Proportional to 1,969.22, 2,717.56 and 1,085.02

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Solution

The fourth proportional to 1,969.22, 2,717.56 and 1,085.02 is: 1,497.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.22 : 2,717.56 = 1,085.02 : x
  2. Step 2: Convert to fraction form
    1,969.22/2,717.56 = 1,085.02/x
  3. Step 3: Cross multiply
    1,969.22x = 2,717.56 × 1,085.02
  4. Step 4: Simplify right side
    1,969.22x = 2,948,593.36
  5. Step 5: Solve for x
    x = 2,948,593.36/1,969.22
  6. Step 6: Final answer
    x = 1,497.34

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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.