Home / 1,922.06-2,651.54-1,213.58

Finding the Fourth Proportional to 1,922.06, 2,651.54 and 1,213.58

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Solution

The fourth proportional to 1,922.06, 2,651.54 and 1,213.58 is: 1,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.06 : 2,651.54 = 1,213.58 : x
  2. Step 2: Convert to fraction form
    1,922.06/2,651.54 = 1,213.58/x
  3. Step 3: Cross multiply
    1,922.06x = 2,651.54 × 1,213.58
  4. Step 4: Simplify right side
    1,922.06x = 3,217,855.91
  5. Step 5: Solve for x
    x = 3,217,855.91/1,922.06
  6. Step 6: Final answer
    x = 1,674.17

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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.