Home / 6,942.81-10,408.83-3,430.39

Finding the Fourth Proportional to 6,942.81, 10,408.83 and 3,430.39

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Solution

The fourth proportional to 6,942.81, 10,408.83 and 3,430.39 is: 5,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.81 : 10,408.83 = 3,430.39 : x
  2. Step 2: Convert to fraction form
    6,942.81/10,408.83 = 3,430.39/x
  3. Step 3: Cross multiply
    6,942.81x = 10,408.83 × 3,430.39
  4. Step 4: Simplify right side
    6,942.81x = 35,706,365.90
  5. Step 5: Solve for x
    x = 35,706,365.90/6,942.81
  6. Step 6: Final answer
    x = 5,142.93

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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.