Home / 3,971.63-5,955.66-2,122.31

Finding the Fourth Proportional to 3,971.63, 5,955.66 and 2,122.31

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Solution

The fourth proportional to 3,971.63, 5,955.66 and 2,122.31 is: 3,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.63 : 5,955.66 = 2,122.31 : x
  2. Step 2: Convert to fraction form
    3,971.63/5,955.66 = 2,122.31/x
  3. Step 3: Cross multiply
    3,971.63x = 5,955.66 × 2,122.31
  4. Step 4: Simplify right side
    3,971.63x = 12,639,727.00
  5. Step 5: Solve for x
    x = 12,639,727.00/3,971.63
  6. Step 6: Final answer
    x = 3,182.51

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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.