Home / 1,918.94-2,872.80-1,458.52

Finding the Fourth Proportional to 1,918.94, 2,872.80 and 1,458.52

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Solution

The fourth proportional to 1,918.94, 2,872.80 and 1,458.52 is: 2,183.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.94 : 2,872.80 = 1,458.52 : x
  2. Step 2: Convert to fraction form
    1,918.94/2,872.80 = 1,458.52/x
  3. Step 3: Cross multiply
    1,918.94x = 2,872.80 × 1,458.52
  4. Step 4: Simplify right side
    1,918.94x = 4,190,029.07
  5. Step 5: Solve for x
    x = 4,190,029.07/1,918.94
  6. Step 6: Final answer
    x = 2,183.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.