Home / 3,880.11-5,820.23-1,106.79

Finding the Fourth Proportional to 3,880.11, 5,820.23 and 1,106.79

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Solution

The fourth proportional to 3,880.11, 5,820.23 and 1,106.79 is: 1,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.11 : 5,820.23 = 1,106.79 : x
  2. Step 2: Convert to fraction form
    3,880.11/5,820.23 = 1,106.79/x
  3. Step 3: Cross multiply
    3,880.11x = 5,820.23 × 1,106.79
  4. Step 4: Simplify right side
    3,880.11x = 6,441,747.08
  5. Step 5: Solve for x
    x = 6,441,747.08/3,880.11
  6. Step 6: Final answer
    x = 1,660.20

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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.