Home / 3,439.92-5,160.28-1,249.68

Finding the Fourth Proportional to 3,439.92, 5,160.28 and 1,249.68

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Solution

The fourth proportional to 3,439.92, 5,160.28 and 1,249.68 is: 1,874.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.92 : 5,160.28 = 1,249.68 : x
  2. Step 2: Convert to fraction form
    3,439.92/5,160.28 = 1,249.68/x
  3. Step 3: Cross multiply
    3,439.92x = 5,160.28 × 1,249.68
  4. Step 4: Simplify right side
    3,439.92x = 6,448,698.71
  5. Step 5: Solve for x
    x = 6,448,698.71/3,439.92
  6. Step 6: Final answer
    x = 1,874.67

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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.