Home / 1,959.20-2,703.44-1,172.96

Finding the Fourth Proportional to 1,959.20, 2,703.44 and 1,172.96

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Solution

The fourth proportional to 1,959.20, 2,703.44 and 1,172.96 is: 1,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.20 : 2,703.44 = 1,172.96 : x
  2. Step 2: Convert to fraction form
    1,959.20/2,703.44 = 1,172.96/x
  3. Step 3: Cross multiply
    1,959.20x = 2,703.44 × 1,172.96
  4. Step 4: Simplify right side
    1,959.20x = 3,171,026.98
  5. Step 5: Solve for x
    x = 3,171,026.98/1,959.20
  6. Step 6: Final answer
    x = 1,618.53

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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.