Home / 1,979.40-2,968.75-1,204.38

Finding the Fourth Proportional to 1,979.40, 2,968.75 and 1,204.38

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Solution

The fourth proportional to 1,979.40, 2,968.75 and 1,204.38 is: 1,806.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.40 : 2,968.75 = 1,204.38 : x
  2. Step 2: Convert to fraction form
    1,979.40/2,968.75 = 1,204.38/x
  3. Step 3: Cross multiply
    1,979.40x = 2,968.75 × 1,204.38
  4. Step 4: Simplify right side
    1,979.40x = 3,575,496.28
  5. Step 5: Solve for x
    x = 3,575,496.28/1,979.40
  6. Step 6: Final answer
    x = 1,806.36

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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.