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Finding the Fourth Proportional to 6,953.60, 9,596.20 and 3,809.78

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Solution

The fourth proportional to 6,953.60, 9,596.20 and 3,809.78 is: 5,257.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,953.60 : 9,596.20 = 3,809.78 : x
  2. Step 2: Convert to fraction form
    6,953.60/9,596.20 = 3,809.78/x
  3. Step 3: Cross multiply
    6,953.60x = 9,596.20 × 3,809.78
  4. Step 4: Simplify right side
    6,953.60x = 36,559,410.84
  5. Step 5: Solve for x
    x = 36,559,410.84/6,953.60
  6. Step 6: Final answer
    x = 5,257.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.