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Finding the Fourth Proportional to 3,350.81, 5,026.61 and 885.65

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Solution

The fourth proportional to 3,350.81, 5,026.61 and 885.65 is: 1,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,350.81 : 5,026.61 = 885.65 : x
  2. Step 2: Convert to fraction form
    3,350.81/5,026.61 = 885.65/x
  3. Step 3: Cross multiply
    3,350.81x = 5,026.61 × 885.65
  4. Step 4: Simplify right side
    3,350.81x = 4,451,817.15
  5. Step 5: Solve for x
    x = 4,451,817.15/3,350.81
  6. Step 6: Final answer
    x = 1,328.58

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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.