Home / 3,157.96-4,741.06-2,122.60

Finding the Fourth Proportional to 3,157.96, 4,741.06 and 2,122.60

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Solution

The fourth proportional to 3,157.96, 4,741.06 and 2,122.60 is: 3,186.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.96 : 4,741.06 = 2,122.60 : x
  2. Step 2: Convert to fraction form
    3,157.96/4,741.06 = 2,122.60/x
  3. Step 3: Cross multiply
    3,157.96x = 4,741.06 × 2,122.60
  4. Step 4: Simplify right side
    3,157.96x = 10,063,373.96
  5. Step 5: Solve for x
    x = 10,063,373.96/3,157.96
  6. Step 6: Final answer
    x = 3,186.67

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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.