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Finding the Fourth Proportional to 6,411.70, 9,618.60 and 2,028.10

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Solution

The fourth proportional to 6,411.70, 9,618.60 and 2,028.10 is: 3,042.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411.70 : 9,618.60 = 2,028.10 : x
  2. Step 2: Convert to fraction form
    6,411.70/9,618.60 = 2,028.10/x
  3. Step 3: Cross multiply
    6,411.70x = 9,618.60 × 2,028.10
  4. Step 4: Simplify right side
    6,411.70x = 19,507,482.66
  5. Step 5: Solve for x
    x = 19,507,482.66/6,411.70
  6. Step 6: Final answer
    x = 3,042.48

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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.