Home / 2,446.24-3,661.68-1,288.48

Finding the Fourth Proportional to 2,446.24, 3,661.68 and 1,288.48

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Solution

The fourth proportional to 2,446.24, 3,661.68 and 1,288.48 is: 1,928.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,446.24 : 3,661.68 = 1,288.48 : x
  2. Step 2: Convert to fraction form
    2,446.24/3,661.68 = 1,288.48/x
  3. Step 3: Cross multiply
    2,446.24x = 3,661.68 × 1,288.48
  4. Step 4: Simplify right side
    2,446.24x = 4,718,001.45
  5. Step 5: Solve for x
    x = 4,718,001.45/2,446.24
  6. Step 6: Final answer
    x = 1,928.67

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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.