Home / 4,127.07-6,190.60-1,391.07

Finding the Fourth Proportional to 4,127.07, 6,190.60 and 1,391.07

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Solution

The fourth proportional to 4,127.07, 6,190.60 and 1,391.07 is: 2,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.07 : 6,190.60 = 1,391.07 : x
  2. Step 2: Convert to fraction form
    4,127.07/6,190.60 = 1,391.07/x
  3. Step 3: Cross multiply
    4,127.07x = 6,190.60 × 1,391.07
  4. Step 4: Simplify right side
    4,127.07x = 8,611,557.94
  5. Step 5: Solve for x
    x = 8,611,557.94/4,127.07
  6. Step 6: Final answer
    x = 2,086.60

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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.