Home / 5,786.56-8,680.32-1,890.88

Finding the Fourth Proportional to 5,786.56, 8,680.32 and 1,890.88

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Solution

The fourth proportional to 5,786.56, 8,680.32 and 1,890.88 is: 2,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.56 : 8,680.32 = 1,890.88 : x
  2. Step 2: Convert to fraction form
    5,786.56/8,680.32 = 1,890.88/x
  3. Step 3: Cross multiply
    5,786.56x = 8,680.32 × 1,890.88
  4. Step 4: Simplify right side
    5,786.56x = 16,413,443.48
  5. Step 5: Solve for x
    x = 16,413,443.48/5,786.56
  6. Step 6: Final answer
    x = 2,836.48

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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.