Home / 3,106.98-4,660.78-1,158.74

Finding the Fourth Proportional to 3,106.98, 4,660.78 and 1,158.74

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Solution

The fourth proportional to 3,106.98, 4,660.78 and 1,158.74 is: 1,738.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.98 : 4,660.78 = 1,158.74 : x
  2. Step 2: Convert to fraction form
    3,106.98/4,660.78 = 1,158.74/x
  3. Step 3: Cross multiply
    3,106.98x = 4,660.78 × 1,158.74
  4. Step 4: Simplify right side
    3,106.98x = 5,400,632.22
  5. Step 5: Solve for x
    x = 5,400,632.22/3,106.98
  6. Step 6: Final answer
    x = 1,738.23

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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.