Home / 6,119.68-8,440.86-3,763.12

Finding the Fourth Proportional to 6,119.68, 8,440.86 and 3,763.12

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Solution

The fourth proportional to 6,119.68, 8,440.86 and 3,763.12 is: 5,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.68 : 8,440.86 = 3,763.12 : x
  2. Step 2: Convert to fraction form
    6,119.68/8,440.86 = 3,763.12/x
  3. Step 3: Cross multiply
    6,119.68x = 8,440.86 × 3,763.12
  4. Step 4: Simplify right side
    6,119.68x = 31,763,969.08
  5. Step 5: Solve for x
    x = 31,763,969.08/6,119.68
  6. Step 6: Final answer
    x = 5,190.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.