Home / 5,789.70-8,682.75-2,091.45

Finding the Fourth Proportional to 5,789.70, 8,682.75 and 2,091.45

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Solution

The fourth proportional to 5,789.70, 8,682.75 and 2,091.45 is: 3,136.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.70 : 8,682.75 = 2,091.45 : x
  2. Step 2: Convert to fraction form
    5,789.70/8,682.75 = 2,091.45/x
  3. Step 3: Cross multiply
    5,789.70x = 8,682.75 × 2,091.45
  4. Step 4: Simplify right side
    5,789.70x = 18,159,537.49
  5. Step 5: Solve for x
    x = 18,159,537.49/5,789.70
  6. Step 6: Final answer
    x = 3,136.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.