Home / 1,959.36-2,704.32-1,120.02

Finding the Fourth Proportional to 1,959.36, 2,704.32 and 1,120.02

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Solution

The fourth proportional to 1,959.36, 2,704.32 and 1,120.02 is: 1,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.36 : 2,704.32 = 1,120.02 : x
  2. Step 2: Convert to fraction form
    1,959.36/2,704.32 = 1,120.02/x
  3. Step 3: Cross multiply
    1,959.36x = 2,704.32 × 1,120.02
  4. Step 4: Simplify right side
    1,959.36x = 3,028,892.49
  5. Step 5: Solve for x
    x = 3,028,892.49/1,959.36
  6. Step 6: Final answer
    x = 1,545.86

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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.