Home / 5,198.36-7,173.90-2,840.67

Finding the Fourth Proportional to 5,198.36, 7,173.90 and 2,840.67

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Solution

The fourth proportional to 5,198.36, 7,173.90 and 2,840.67 is: 3,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.36 : 7,173.90 = 2,840.67 : x
  2. Step 2: Convert to fraction form
    5,198.36/7,173.90 = 2,840.67/x
  3. Step 3: Cross multiply
    5,198.36x = 7,173.90 × 2,840.67
  4. Step 4: Simplify right side
    5,198.36x = 20,378,682.51
  5. Step 5: Solve for x
    x = 20,378,682.51/5,198.36
  6. Step 6: Final answer
    x = 3,920.22

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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.