Home / 3,969.45-5,955.08-1,372.38

Finding the Fourth Proportional to 3,969.45, 5,955.08 and 1,372.38

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Solution

The fourth proportional to 3,969.45, 5,955.08 and 1,372.38 is: 2,058.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.45 : 5,955.08 = 1,372.38 : x
  2. Step 2: Convert to fraction form
    3,969.45/5,955.08 = 1,372.38/x
  3. Step 3: Cross multiply
    3,969.45x = 5,955.08 × 1,372.38
  4. Step 4: Simplify right side
    3,969.45x = 8,172,632.69
  5. Step 5: Solve for x
    x = 8,172,632.69/3,969.45
  6. Step 6: Final answer
    x = 2,058.88

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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.