Home / 1,890.51-2,608.94-1,144.33

Finding the Fourth Proportional to 1,890.51, 2,608.94 and 1,144.33

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Solution

The fourth proportional to 1,890.51, 2,608.94 and 1,144.33 is: 1,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.51 : 2,608.94 = 1,144.33 : x
  2. Step 2: Convert to fraction form
    1,890.51/2,608.94 = 1,144.33/x
  3. Step 3: Cross multiply
    1,890.51x = 2,608.94 × 1,144.33
  4. Step 4: Simplify right side
    1,890.51x = 2,985,484.65
  5. Step 5: Solve for x
    x = 2,985,484.65/1,890.51
  6. Step 6: Final answer
    x = 1,579.20

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1.5x scale

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.