Home / 5,120.36-7,066.22-2,882.31

Finding the Fourth Proportional to 5,120.36, 7,066.22 and 2,882.31

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Solution

The fourth proportional to 5,120.36, 7,066.22 and 2,882.31 is: 3,977.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.36 : 7,066.22 = 2,882.31 : x
  2. Step 2: Convert to fraction form
    5,120.36/7,066.22 = 2,882.31/x
  3. Step 3: Cross multiply
    5,120.36x = 7,066.22 × 2,882.31
  4. Step 4: Simplify right side
    5,120.36x = 20,367,063.98
  5. Step 5: Solve for x
    x = 20,367,063.98/5,120.36
  6. Step 6: Final answer
    x = 3,977.67

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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.