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Finding the Fourth Proportional to 5,786.08, 8,679.10 and 1,403.58

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Solution

The fourth proportional to 5,786.08, 8,679.10 and 1,403.58 is: 2,105.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.08 : 8,679.10 = 1,403.58 : x
  2. Step 2: Convert to fraction form
    5,786.08/8,679.10 = 1,403.58/x
  3. Step 3: Cross multiply
    5,786.08x = 8,679.10 × 1,403.58
  4. Step 4: Simplify right side
    5,786.08x = 12,181,794.03
  5. Step 5: Solve for x
    x = 12,181,794.03/5,786.08
  6. Step 6: Final answer
    x = 2,105.36

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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.