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Finding the Fourth Proportional to 6,852.50, 9,455.94 and 3,868.64

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Solution

The fourth proportional to 6,852.50, 9,455.94 and 3,868.64 is: 5,338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,852.50 : 9,455.94 = 3,868.64 : x
  2. Step 2: Convert to fraction form
    6,852.50/9,455.94 = 3,868.64/x
  3. Step 3: Cross multiply
    6,852.50x = 9,455.94 × 3,868.64
  4. Step 4: Simplify right side
    6,852.50x = 36,581,627.72
  5. Step 5: Solve for x
    x = 36,581,627.72/6,852.50
  6. Step 6: Final answer
    x = 5,338.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.