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Finding the Fourth Proportional to 6,539.47, 9,810.19 and 2,643.73

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Solution

The fourth proportional to 6,539.47, 9,810.19 and 2,643.73 is: 3,965.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.47 : 9,810.19 = 2,643.73 : x
  2. Step 2: Convert to fraction form
    6,539.47/9,810.19 = 2,643.73/x
  3. Step 3: Cross multiply
    6,539.47x = 9,810.19 × 2,643.73
  4. Step 4: Simplify right side
    6,539.47x = 25,935,444.56
  5. Step 5: Solve for x
    x = 25,935,444.56/6,539.47
  6. Step 6: Final answer
    x = 3,965.99

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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.