Home / 1,198.44-1,654.98-1,111.08

Finding the Fourth Proportional to 1,198.44, 1,654.98 and 1,111.08

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Solution

The fourth proportional to 1,198.44, 1,654.98 and 1,111.08 is: 1,534.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.44 : 1,654.98 = 1,111.08 : x
  2. Step 2: Convert to fraction form
    1,198.44/1,654.98 = 1,111.08/x
  3. Step 3: Cross multiply
    1,198.44x = 1,654.98 × 1,111.08
  4. Step 4: Simplify right side
    1,198.44x = 1,838,815.18
  5. Step 5: Solve for x
    x = 1,838,815.18/1,198.44
  6. Step 6: Final answer
    x = 1,534.34

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1.5x scale

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.