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Finding the Fourth Proportional to 1,837.87, 2,536.27 and 998.58

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Solution

The fourth proportional to 1,837.87, 2,536.27 and 998.58 is: 1,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837.87 : 2,536.27 = 998.58 : x
  2. Step 2: Convert to fraction form
    1,837.87/2,536.27 = 998.58/x
  3. Step 3: Cross multiply
    1,837.87x = 2,536.27 × 998.58
  4. Step 4: Simplify right side
    1,837.87x = 2,532,668.50
  5. Step 5: Solve for x
    x = 2,532,668.50/1,837.87
  6. Step 6: Final answer
    x = 1,378.05

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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.