Home / 3,086.37-4,627.53-1,419.80

Finding the Fourth Proportional to 3,086.37, 4,627.53 and 1,419.80

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Solution

The fourth proportional to 3,086.37, 4,627.53 and 1,419.80 is: 2,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.37 : 4,627.53 = 1,419.80 : x
  2. Step 2: Convert to fraction form
    3,086.37/4,627.53 = 1,419.80/x
  3. Step 3: Cross multiply
    3,086.37x = 4,627.53 × 1,419.80
  4. Step 4: Simplify right side
    3,086.37x = 6,570,143.96
  5. Step 5: Solve for x
    x = 6,570,143.96/3,086.37
  6. Step 6: Final answer
    x = 2,128.76

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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.