Home / 1,336.16-2,003.01-513.87

Finding the Fourth Proportional to 1,336.16, 2,003.01 and 513.87

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Solution

The fourth proportional to 1,336.16, 2,003.01 and 513.87 is: 770.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.16 : 2,003.01 = 513.87 : x
  2. Step 2: Convert to fraction form
    1,336.16/2,003.01 = 513.87/x
  3. Step 3: Cross multiply
    1,336.16x = 2,003.01 × 513.87
  4. Step 4: Simplify right side
    1,336.16x = 1,029,286.75
  5. Step 5: Solve for x
    x = 1,029,286.75/1,336.16
  6. Step 6: Final answer
    x = 770.33

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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.