Home / 1,891.28-2,609.35-1,144.96

Finding the Fourth Proportional to 1,891.28, 2,609.35 and 1,144.96

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Solution

The fourth proportional to 1,891.28, 2,609.35 and 1,144.96 is: 1,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.28 : 2,609.35 = 1,144.96 : x
  2. Step 2: Convert to fraction form
    1,891.28/2,609.35 = 1,144.96/x
  3. Step 3: Cross multiply
    1,891.28x = 2,609.35 × 1,144.96
  4. Step 4: Simplify right side
    1,891.28x = 2,987,591.99
  5. Step 5: Solve for x
    x = 2,987,591.99/1,891.28
  6. Step 6: Final answer
    x = 1,579.66

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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.