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Finding the Fourth Proportional to 1,891.44, 2,833.95 and 1,340.88

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Solution

The fourth proportional to 1,891.44, 2,833.95 and 1,340.88 is: 2,009.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.44 : 2,833.95 = 1,340.88 : x
  2. Step 2: Convert to fraction form
    1,891.44/2,833.95 = 1,340.88/x
  3. Step 3: Cross multiply
    1,891.44x = 2,833.95 × 1,340.88
  4. Step 4: Simplify right side
    1,891.44x = 3,799,986.88
  5. Step 5: Solve for x
    x = 3,799,986.88/1,891.44
  6. Step 6: Final answer
    x = 2,009.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.