Home / 3,120.24-4,674.80-2,653.68

Finding the Fourth Proportional to 3,120.24, 4,674.80 and 2,653.68

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Solution

The fourth proportional to 3,120.24, 4,674.80 and 2,653.68 is: 3,975.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.24 : 4,674.80 = 2,653.68 : x
  2. Step 2: Convert to fraction form
    3,120.24/4,674.80 = 2,653.68/x
  3. Step 3: Cross multiply
    3,120.24x = 4,674.80 × 2,653.68
  4. Step 4: Simplify right side
    3,120.24x = 12,405,423.26
  5. Step 5: Solve for x
    x = 12,405,423.26/3,120.24
  6. Step 6: Final answer
    x = 3,975.79

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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.