Home / 2,133.55-3,211.56-1,946.71

Finding the Fourth Proportional to 2,133.55, 3,211.56 and 1,946.71

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Solution

The fourth proportional to 2,133.55, 3,211.56 and 1,946.71 is: 2,930.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.55 : 3,211.56 = 1,946.71 : x
  2. Step 2: Convert to fraction form
    2,133.55/3,211.56 = 1,946.71/x
  3. Step 3: Cross multiply
    2,133.55x = 3,211.56 × 1,946.71
  4. Step 4: Simplify right side
    2,133.55x = 6,251,975.97
  5. Step 5: Solve for x
    x = 6,251,975.97/2,133.55
  6. Step 6: Final answer
    x = 2,930.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.