Home / 3,081.09-4,621.14-1,520.67

Finding the Fourth Proportional to 3,081.09, 4,621.14 and 1,520.67

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Solution

The fourth proportional to 3,081.09, 4,621.14 and 1,520.67 is: 2,280.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.09 : 4,621.14 = 1,520.67 : x
  2. Step 2: Convert to fraction form
    3,081.09/4,621.14 = 1,520.67/x
  3. Step 3: Cross multiply
    3,081.09x = 4,621.14 × 1,520.67
  4. Step 4: Simplify right side
    3,081.09x = 7,027,228.96
  5. Step 5: Solve for x
    x = 7,027,228.96/3,081.09
  6. Step 6: Final answer
    x = 2,280.76

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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.