Home / 1,868.42-2,578.33-1,029.26

Finding the Fourth Proportional to 1,868.42, 2,578.33 and 1,029.26

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Solution

The fourth proportional to 1,868.42, 2,578.33 and 1,029.26 is: 1,420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.42 : 2,578.33 = 1,029.26 : x
  2. Step 2: Convert to fraction form
    1,868.42/2,578.33 = 1,029.26/x
  3. Step 3: Cross multiply
    1,868.42x = 2,578.33 × 1,029.26
  4. Step 4: Simplify right side
    1,868.42x = 2,653,771.94
  5. Step 5: Solve for x
    x = 2,653,771.94/1,868.42
  6. Step 6: Final answer
    x = 1,420.33

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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.