Home / 3,120.06-4,674.60-2,629.62

Finding the Fourth Proportional to 3,120.06, 4,674.60 and 2,629.62

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Solution

The fourth proportional to 3,120.06, 4,674.60 and 2,629.62 is: 3,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.06 : 4,674.60 = 2,629.62 : x
  2. Step 2: Convert to fraction form
    3,120.06/4,674.60 = 2,629.62/x
  3. Step 3: Cross multiply
    3,120.06x = 4,674.60 × 2,629.62
  4. Step 4: Simplify right side
    3,120.06x = 12,292,421.65
  5. Step 5: Solve for x
    x = 12,292,421.65/3,120.06
  6. Step 6: Final answer
    x = 3,939.80

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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.