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Finding the Fourth Proportional to 6,913, 10,369.20 and 1,982.44

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Solution

The fourth proportional to 6,913, 10,369.20 and 1,982.44 is: 2,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913 : 10,369.20 = 1,982.44 : x
  2. Step 2: Convert to fraction form
    6,913/10,369.20 = 1,982.44/x
  3. Step 3: Cross multiply
    6,913x = 10,369.20 × 1,982.44
  4. Step 4: Simplify right side
    6,913x = 20,556,316.85
  5. Step 5: Solve for x
    x = 20,556,316.85/6,913
  6. Step 6: Final answer
    x = 2,973.57

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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.