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Finding the Fourth Proportional to 6,187, 8,538.36 and 3,668.56

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Solution

The fourth proportional to 6,187, 8,538.36 and 3,668.56 is: 5,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,187 : 8,538.36 = 3,668.56 : x
  2. Step 2: Convert to fraction form
    6,187/8,538.36 = 3,668.56/x
  3. Step 3: Cross multiply
    6,187x = 8,538.36 × 3,668.56
  4. Step 4: Simplify right side
    6,187x = 31,323,485.96
  5. Step 5: Solve for x
    x = 31,323,485.96/6,187
  6. Step 6: Final answer
    x = 5,062.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.