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Finding the Fourth Proportional to 5,786.90, 8,680.25 and 1,404.39

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Solution

The fourth proportional to 5,786.90, 8,680.25 and 1,404.39 is: 2,106.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.90 : 8,680.25 = 1,404.39 : x
  2. Step 2: Convert to fraction form
    5,786.90/8,680.25 = 1,404.39/x
  3. Step 3: Cross multiply
    5,786.90x = 8,680.25 × 1,404.39
  4. Step 4: Simplify right side
    5,786.90x = 12,190,449.28
  5. Step 5: Solve for x
    x = 12,190,449.28/5,786.90
  6. Step 6: Final answer
    x = 2,106.56

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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.