Home / 1,938.58-2,675.30-1,192.98

Finding the Fourth Proportional to 1,938.58, 2,675.30 and 1,192.98

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Solution

The fourth proportional to 1,938.58, 2,675.30 and 1,192.98 is: 1,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.58 : 2,675.30 = 1,192.98 : x
  2. Step 2: Convert to fraction form
    1,938.58/2,675.30 = 1,192.98/x
  3. Step 3: Cross multiply
    1,938.58x = 2,675.30 × 1,192.98
  4. Step 4: Simplify right side
    1,938.58x = 3,191,560.05
  5. Step 5: Solve for x
    x = 3,191,560.05/1,938.58
  6. Step 6: Final answer
    x = 1,646.34

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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.