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Finding the Fourth Proportional to 3,645.96, 5,468.94 and 909.96

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Solution

The fourth proportional to 3,645.96, 5,468.94 and 909.96 is: 1,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.96 : 5,468.94 = 909.96 : x
  2. Step 2: Convert to fraction form
    3,645.96/5,468.94 = 909.96/x
  3. Step 3: Cross multiply
    3,645.96x = 5,468.94 × 909.96
  4. Step 4: Simplify right side
    3,645.96x = 4,976,516.64
  5. Step 5: Solve for x
    x = 4,976,516.64/3,645.96
  6. Step 6: Final answer
    x = 1,364.94

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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.