Home / 4,078.85-5,626.75-2,399.19

Finding the Fourth Proportional to 4,078.85, 5,626.75 and 2,399.19

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Solution

The fourth proportional to 4,078.85, 5,626.75 and 2,399.19 is: 3,309.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.85 : 5,626.75 = 2,399.19 : x
  2. Step 2: Convert to fraction form
    4,078.85/5,626.75 = 2,399.19/x
  3. Step 3: Cross multiply
    4,078.85x = 5,626.75 × 2,399.19
  4. Step 4: Simplify right side
    4,078.85x = 13,499,642.33
  5. Step 5: Solve for x
    x = 13,499,642.33/4,078.85
  6. Step 6: Final answer
    x = 3,309.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.