Home / 1,917.33-2,645.84-1,172.54

Finding the Fourth Proportional to 1,917.33, 2,645.84 and 1,172.54

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Solution

The fourth proportional to 1,917.33, 2,645.84 and 1,172.54 is: 1,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.33 : 2,645.84 = 1,172.54 : x
  2. Step 2: Convert to fraction form
    1,917.33/2,645.84 = 1,172.54/x
  3. Step 3: Cross multiply
    1,917.33x = 2,645.84 × 1,172.54
  4. Step 4: Simplify right side
    1,917.33x = 3,102,340.00
  5. Step 5: Solve for x
    x = 3,102,340.00/1,917.33
  6. Step 6: Final answer
    x = 1,618.05

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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.