Home / 1,356.33-2,043.73-1,118.19

Finding the Fourth Proportional to 1,356.33, 2,043.73 and 1,118.19

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Solution

The fourth proportional to 1,356.33, 2,043.73 and 1,118.19 is: 1,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.33 : 2,043.73 = 1,118.19 : x
  2. Step 2: Convert to fraction form
    1,356.33/2,043.73 = 1,118.19/x
  3. Step 3: Cross multiply
    1,356.33x = 2,043.73 × 1,118.19
  4. Step 4: Simplify right side
    1,356.33x = 2,285,275.65
  5. Step 5: Solve for x
    x = 2,285,275.65/1,356.33
  6. Step 6: Final answer
    x = 1,684.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.