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Finding the Fourth Proportional to 3,323.66, 4,986.16 and 1,243.62

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Solution

The fourth proportional to 3,323.66, 4,986.16 and 1,243.62 is: 1,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,323.66 : 4,986.16 = 1,243.62 : x
  2. Step 2: Convert to fraction form
    3,323.66/4,986.16 = 1,243.62/x
  3. Step 3: Cross multiply
    3,323.66x = 4,986.16 × 1,243.62
  4. Step 4: Simplify right side
    3,323.66x = 6,200,885.19
  5. Step 5: Solve for x
    x = 6,200,885.19/3,323.66
  6. Step 6: Final answer
    x = 1,865.68

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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.