Home / 3,969.15-5,955.75-1,630.95

Finding the Fourth Proportional to 3,969.15, 5,955.75 and 1,630.95

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Solution

The fourth proportional to 3,969.15, 5,955.75 and 1,630.95 is: 2,447.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.15 : 5,955.75 = 1,630.95 : x
  2. Step 2: Convert to fraction form
    3,969.15/5,955.75 = 1,630.95/x
  3. Step 3: Cross multiply
    3,969.15x = 5,955.75 × 1,630.95
  4. Step 4: Simplify right side
    3,969.15x = 9,713,530.46
  5. Step 5: Solve for x
    x = 9,713,530.46/3,969.15
  6. Step 6: Final answer
    x = 2,447.26

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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.