Home / 5,714.15-8,571.21-1,818.55

Finding the Fourth Proportional to 5,714.15, 8,571.21 and 1,818.55

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Solution

The fourth proportional to 5,714.15, 8,571.21 and 1,818.55 is: 2,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,714.15 : 8,571.21 = 1,818.55 : x
  2. Step 2: Convert to fraction form
    5,714.15/8,571.21 = 1,818.55/x
  3. Step 3: Cross multiply
    5,714.15x = 8,571.21 × 1,818.55
  4. Step 4: Simplify right side
    5,714.15x = 15,587,131.09
  5. Step 5: Solve for x
    x = 15,587,131.09/5,714.15
  6. Step 6: Final answer
    x = 2,727.81

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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.