Home / 5,077.22-7,615.82-2,157.57

Finding the Fourth Proportional to 5,077.22, 7,615.82 and 2,157.57

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Solution

The fourth proportional to 5,077.22, 7,615.82 and 2,157.57 is: 3,236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.22 : 7,615.82 = 2,157.57 : x
  2. Step 2: Convert to fraction form
    5,077.22/7,615.82 = 2,157.57/x
  3. Step 3: Cross multiply
    5,077.22x = 7,615.82 × 2,157.57
  4. Step 4: Simplify right side
    5,077.22x = 16,431,670.15
  5. Step 5: Solve for x
    x = 16,431,670.15/5,077.22
  6. Step 6: Final answer
    x = 3,236.36

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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.