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Finding the Fourth Proportional to 6,172.19, 8,518.11 and 3,935.06

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Solution

The fourth proportional to 6,172.19, 8,518.11 and 3,935.06 is: 5,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.19 : 8,518.11 = 3,935.06 : x
  2. Step 2: Convert to fraction form
    6,172.19/8,518.11 = 3,935.06/x
  3. Step 3: Cross multiply
    6,172.19x = 8,518.11 × 3,935.06
  4. Step 4: Simplify right side
    6,172.19x = 33,519,273.94
  5. Step 5: Solve for x
    x = 33,519,273.94/6,172.19
  6. Step 6: Final answer
    x = 5,430.69

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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.