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Finding the Fourth Proportional to 3,969.99, 5,953.73 and 1,336.95

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Solution

The fourth proportional to 3,969.99, 5,953.73 and 1,336.95 is: 2,005.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.99 : 5,953.73 = 1,336.95 : x
  2. Step 2: Convert to fraction form
    3,969.99/5,953.73 = 1,336.95/x
  3. Step 3: Cross multiply
    3,969.99x = 5,953.73 × 1,336.95
  4. Step 4: Simplify right side
    3,969.99x = 7,959,832.64
  5. Step 5: Solve for x
    x = 7,959,832.64/3,969.99
  6. Step 6: Final answer
    x = 2,005.00

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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.