Home / 1,891.40-2,608.84-1,144.07

Finding the Fourth Proportional to 1,891.40, 2,608.84 and 1,144.07

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Solution

The fourth proportional to 1,891.40, 2,608.84 and 1,144.07 is: 1,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.40 : 2,608.84 = 1,144.07 : x
  2. Step 2: Convert to fraction form
    1,891.40/2,608.84 = 1,144.07/x
  3. Step 3: Cross multiply
    1,891.40x = 2,608.84 × 1,144.07
  4. Step 4: Simplify right side
    1,891.40x = 2,984,695.58
  5. Step 5: Solve for x
    x = 2,984,695.58/1,891.40
  6. Step 6: Final answer
    x = 1,578.04

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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.