Home / 1,890.55-2,609.19-1,144.49

Finding the Fourth Proportional to 1,890.55, 2,609.19 and 1,144.49

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Solution

The fourth proportional to 1,890.55, 2,609.19 and 1,144.49 is: 1,579.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.55 : 2,609.19 = 1,144.49 : x
  2. Step 2: Convert to fraction form
    1,890.55/2,609.19 = 1,144.49/x
  3. Step 3: Cross multiply
    1,890.55x = 2,609.19 × 1,144.49
  4. Step 4: Simplify right side
    1,890.55x = 2,986,182.94
  5. Step 5: Solve for x
    x = 2,986,182.94/1,890.55
  6. Step 6: Final answer
    x = 1,579.53

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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.