Home / 4,120.28-6,176.32-2,660.48

Finding the Fourth Proportional to 4,120.28, 6,176.32 and 2,660.48

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Solution

The fourth proportional to 4,120.28, 6,176.32 and 2,660.48 is: 3,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.28 : 6,176.32 = 2,660.48 : x
  2. Step 2: Convert to fraction form
    4,120.28/6,176.32 = 2,660.48/x
  3. Step 3: Cross multiply
    4,120.28x = 6,176.32 × 2,660.48
  4. Step 4: Simplify right side
    4,120.28x = 16,431,975.83
  5. Step 5: Solve for x
    x = 16,431,975.83/4,120.28
  6. Step 6: Final answer
    x = 3,988.07

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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.