Home / 3,817.82-5,728.37-1,479.45

Finding the Fourth Proportional to 3,817.82, 5,728.37 and 1,479.45

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Solution

The fourth proportional to 3,817.82, 5,728.37 and 1,479.45 is: 2,219.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.82 : 5,728.37 = 1,479.45 : x
  2. Step 2: Convert to fraction form
    3,817.82/5,728.37 = 1,479.45/x
  3. Step 3: Cross multiply
    3,817.82x = 5,728.37 × 1,479.45
  4. Step 4: Simplify right side
    3,817.82x = 8,474,827.18
  5. Step 5: Solve for x
    x = 8,474,827.18/3,817.82
  6. Step 6: Final answer
    x = 2,219.81

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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.