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Finding the Fourth Proportional to 5,273.99, 7,899.32 and 3,419.49

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Solution

The fourth proportional to 5,273.99, 7,899.32 and 3,419.49 is: 5,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.99 : 7,899.32 = 3,419.49 : x
  2. Step 2: Convert to fraction form
    5,273.99/7,899.32 = 3,419.49/x
  3. Step 3: Cross multiply
    5,273.99x = 7,899.32 × 3,419.49
  4. Step 4: Simplify right side
    5,273.99x = 27,011,628.65
  5. Step 5: Solve for x
    x = 27,011,628.65/5,273.99
  6. Step 6: Final answer
    x = 5,121.67

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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.