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Finding the Fourth Proportional to 1,891.62, 2,837.52 and 1,070.55

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Solution

The fourth proportional to 1,891.62, 2,837.52 and 1,070.55 is: 1,605.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.62 : 2,837.52 = 1,070.55 : x
  2. Step 2: Convert to fraction form
    1,891.62/2,837.52 = 1,070.55/x
  3. Step 3: Cross multiply
    1,891.62x = 2,837.52 × 1,070.55
  4. Step 4: Simplify right side
    1,891.62x = 3,037,707.04
  5. Step 5: Solve for x
    x = 3,037,707.04/1,891.62
  6. Step 6: Final answer
    x = 1,605.88

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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.