Home / 1,922.82-2,653.56-1,177.11

Finding the Fourth Proportional to 1,922.82, 2,653.56 and 1,177.11

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Solution

The fourth proportional to 1,922.82, 2,653.56 and 1,177.11 is: 1,624.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.82 : 2,653.56 = 1,177.11 : x
  2. Step 2: Convert to fraction form
    1,922.82/2,653.56 = 1,177.11/x
  3. Step 3: Cross multiply
    1,922.82x = 2,653.56 × 1,177.11
  4. Step 4: Simplify right side
    1,922.82x = 3,123,532.01
  5. Step 5: Solve for x
    x = 3,123,532.01/1,922.82
  6. Step 6: Final answer
    x = 1,624.45

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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.