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Finding the Fourth Proportional to 6,401.87, 9,602.81 and 2,019.67

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Solution

The fourth proportional to 6,401.87, 9,602.81 and 2,019.67 is: 3,029.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,401.87 : 9,602.81 = 2,019.67 : x
  2. Step 2: Convert to fraction form
    6,401.87/9,602.81 = 2,019.67/x
  3. Step 3: Cross multiply
    6,401.87x = 9,602.81 × 2,019.67
  4. Step 4: Simplify right side
    6,401.87x = 19,394,507.27
  5. Step 5: Solve for x
    x = 19,394,507.27/6,401.87
  6. Step 6: Final answer
    x = 3,029.51

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Similar ratio
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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.