Home / 2,089.70-2,883.96-1,205.79

Finding the Fourth Proportional to 2,089.70, 2,883.96 and 1,205.79

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Solution

The fourth proportional to 2,089.70, 2,883.96 and 1,205.79 is: 1,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.70 : 2,883.96 = 1,205.79 : x
  2. Step 2: Convert to fraction form
    2,089.70/2,883.96 = 1,205.79/x
  3. Step 3: Cross multiply
    2,089.70x = 2,883.96 × 1,205.79
  4. Step 4: Simplify right side
    2,089.70x = 3,477,450.13
  5. Step 5: Solve for x
    x = 3,477,450.13/2,089.70
  6. Step 6: Final answer
    x = 1,664.09

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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.