Home / 4,636.21-6,912.96-4,121.05

Finding the Fourth Proportional to 4,636.21, 6,912.96 and 4,121.05

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Solution

The fourth proportional to 4,636.21, 6,912.96 and 4,121.05 is: 6,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,636.21 : 6,912.96 = 4,121.05 : x
  2. Step 2: Convert to fraction form
    4,636.21/6,912.96 = 4,121.05/x
  3. Step 3: Cross multiply
    4,636.21x = 6,912.96 × 4,121.05
  4. Step 4: Simplify right side
    4,636.21x = 28,488,598.64
  5. Step 5: Solve for x
    x = 28,488,598.64/4,636.21
  6. Step 6: Final answer
    x = 6,144.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.