Home / 7,069.31-10,605.68-2,138.67

Finding the Fourth Proportional to 7,069.31, 10,605.68 and 2,138.67

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Solution

The fourth proportional to 7,069.31, 10,605.68 and 2,138.67 is: 3,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.31 : 10,605.68 = 2,138.67 : x
  2. Step 2: Convert to fraction form
    7,069.31/10,605.68 = 2,138.67/x
  3. Step 3: Cross multiply
    7,069.31x = 10,605.68 × 2,138.67
  4. Step 4: Simplify right side
    7,069.31x = 22,682,059.00
  5. Step 5: Solve for x
    x = 22,682,059.00/7,069.31
  6. Step 6: Final answer
    x = 3,208.53

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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.