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Finding the Fourth Proportional to 6,539.34, 9,809.01 and 2,643.78

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Solution

The fourth proportional to 6,539.34, 9,809.01 and 2,643.78 is: 3,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.34 : 9,809.01 = 2,643.78 : x
  2. Step 2: Convert to fraction form
    6,539.34/9,809.01 = 2,643.78/x
  3. Step 3: Cross multiply
    6,539.34x = 9,809.01 × 2,643.78
  4. Step 4: Simplify right side
    6,539.34x = 25,932,864.46
  5. Step 5: Solve for x
    x = 25,932,864.46/6,539.34
  6. Step 6: Final answer
    x = 3,965.67

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Similar ratio
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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.