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Finding the Fourth Proportional to 3,310.89, 4,966.47 and 1,119.63

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Solution

The fourth proportional to 3,310.89, 4,966.47 and 1,119.63 is: 1,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.89 : 4,966.47 = 1,119.63 : x
  2. Step 2: Convert to fraction form
    3,310.89/4,966.47 = 1,119.63/x
  3. Step 3: Cross multiply
    3,310.89x = 4,966.47 × 1,119.63
  4. Step 4: Simplify right side
    3,310.89x = 5,560,608.81
  5. Step 5: Solve for x
    x = 5,560,608.81/3,310.89
  6. Step 6: Final answer
    x = 1,679.49

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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.