Home / 1,955.39-2,938.82-1,628.42

Finding the Fourth Proportional to 1,955.39, 2,938.82 and 1,628.42

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Solution

The fourth proportional to 1,955.39, 2,938.82 and 1,628.42 is: 2,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.39 : 2,938.82 = 1,628.42 : x
  2. Step 2: Convert to fraction form
    1,955.39/2,938.82 = 1,628.42/x
  3. Step 3: Cross multiply
    1,955.39x = 2,938.82 × 1,628.42
  4. Step 4: Simplify right side
    1,955.39x = 4,785,610.43
  5. Step 5: Solve for x
    x = 4,785,610.43/1,955.39
  6. Step 6: Final answer
    x = 2,447.40

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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.