Home / 5,786.20-8,679.32-1,403.65

Finding the Fourth Proportional to 5,786.20, 8,679.32 and 1,403.65

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Solution

The fourth proportional to 5,786.20, 8,679.32 and 1,403.65 is: 2,105.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.20 : 8,679.32 = 1,403.65 : x
  2. Step 2: Convert to fraction form
    5,786.20/8,679.32 = 1,403.65/x
  3. Step 3: Cross multiply
    5,786.20x = 8,679.32 × 1,403.65
  4. Step 4: Simplify right side
    5,786.20x = 12,182,727.52
  5. Step 5: Solve for x
    x = 12,182,727.52/5,786.20
  6. Step 6: Final answer
    x = 2,105.48

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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.