Home / 5,786.25-8,679.38-1,403.70

Finding the Fourth Proportional to 5,786.25, 8,679.38 and 1,403.70

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Solution

The fourth proportional to 5,786.25, 8,679.38 and 1,403.70 is: 2,105.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.25 : 8,679.38 = 1,403.70 : x
  2. Step 2: Convert to fraction form
    5,786.25/8,679.38 = 1,403.70/x
  3. Step 3: Cross multiply
    5,786.25x = 8,679.38 × 1,403.70
  4. Step 4: Simplify right side
    5,786.25x = 12,183,245.71
  5. Step 5: Solve for x
    x = 12,183,245.71/5,786.25
  6. Step 6: Final answer
    x = 2,105.55

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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.