Home / 3,076.25-4,611.33-1,431.34

Finding the Fourth Proportional to 3,076.25, 4,611.33 and 1,431.34

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Solution

The fourth proportional to 3,076.25, 4,611.33 and 1,431.34 is: 2,145.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.25 : 4,611.33 = 1,431.34 : x
  2. Step 2: Convert to fraction form
    3,076.25/4,611.33 = 1,431.34/x
  3. Step 3: Cross multiply
    3,076.25x = 4,611.33 × 1,431.34
  4. Step 4: Simplify right side
    3,076.25x = 6,600,369.55
  5. Step 5: Solve for x
    x = 6,600,369.55/3,076.25
  6. Step 6: Final answer
    x = 2,145.59

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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.