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Finding the Fourth Proportional to 6,428.52, 9,643.05 and 2,046.02

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Solution

The fourth proportional to 6,428.52, 9,643.05 and 2,046.02 is: 3,069.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.52 : 9,643.05 = 2,046.02 : x
  2. Step 2: Convert to fraction form
    6,428.52/9,643.05 = 2,046.02/x
  3. Step 3: Cross multiply
    6,428.52x = 9,643.05 × 2,046.02
  4. Step 4: Simplify right side
    6,428.52x = 19,729,824.95
  5. Step 5: Solve for x
    x = 19,729,824.95/6,428.52
  6. Step 6: Final answer
    x = 3,069.11

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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.