Home / 2,938.82-4,055.30-1,759.88

Finding the Fourth Proportional to 2,938.82, 4,055.30 and 1,759.88

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Solution

The fourth proportional to 2,938.82, 4,055.30 and 1,759.88 is: 2,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.82 : 4,055.30 = 1,759.88 : x
  2. Step 2: Convert to fraction form
    2,938.82/4,055.30 = 1,759.88/x
  3. Step 3: Cross multiply
    2,938.82x = 4,055.30 × 1,759.88
  4. Step 4: Simplify right side
    2,938.82x = 7,136,841.36
  5. Step 5: Solve for x
    x = 7,136,841.36/2,938.82
  6. Step 6: Final answer
    x = 2,428.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.