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Finding the Fourth Proportional to 6,405.84, 9,600.96 and 4,065.84

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Solution

The fourth proportional to 6,405.84, 9,600.96 and 4,065.84 is: 6,093.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.84 : 9,600.96 = 4,065.84 : x
  2. Step 2: Convert to fraction form
    6,405.84/9,600.96 = 4,065.84/x
  3. Step 3: Cross multiply
    6,405.84x = 9,600.96 × 4,065.84
  4. Step 4: Simplify right side
    6,405.84x = 39,035,967.21
  5. Step 5: Solve for x
    x = 39,035,967.21/6,405.84
  6. Step 6: Final answer
    x = 6,093.81

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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.