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Finding the Fourth Proportional to 6,643.19, 9,965.87 and 2,260.19

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Solution

The fourth proportional to 6,643.19, 9,965.87 and 2,260.19 is: 3,390.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.19 : 9,965.87 = 2,260.19 : x
  2. Step 2: Convert to fraction form
    6,643.19/9,965.87 = 2,260.19/x
  3. Step 3: Cross multiply
    6,643.19x = 9,965.87 × 2,260.19
  4. Step 4: Simplify right side
    6,643.19x = 22,524,748.41
  5. Step 5: Solve for x
    x = 22,524,748.41/6,643.19
  6. Step 6: Final answer
    x = 3,390.65

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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.