Home / 5,714.36-8,571.44-1,818.72

Finding the Fourth Proportional to 5,714.36, 8,571.44 and 1,818.72

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Solution

The fourth proportional to 5,714.36, 8,571.44 and 1,818.72 is: 2,728.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,714.36 : 8,571.44 = 1,818.72 : x
  2. Step 2: Convert to fraction form
    5,714.36/8,571.44 = 1,818.72/x
  3. Step 3: Cross multiply
    5,714.36x = 8,571.44 × 1,818.72
  4. Step 4: Simplify right side
    5,714.36x = 15,589,049.36
  5. Step 5: Solve for x
    x = 15,589,049.36/5,714.36
  6. Step 6: Final answer
    x = 2,728.05

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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.