Home / 5,786.21-8,680.73-1,890.51

Finding the Fourth Proportional to 5,786.21, 8,680.73 and 1,890.51

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Solution

The fourth proportional to 5,786.21, 8,680.73 and 1,890.51 is: 2,836.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.21 : 8,680.73 = 1,890.51 : x
  2. Step 2: Convert to fraction form
    5,786.21/8,680.73 = 1,890.51/x
  3. Step 3: Cross multiply
    5,786.21x = 8,680.73 × 1,890.51
  4. Step 4: Simplify right side
    5,786.21x = 16,410,997.42
  5. Step 5: Solve for x
    x = 16,410,997.42/5,786.21
  6. Step 6: Final answer
    x = 2,836.23

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Double scale
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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.