Home / 1,837.56-2,756.63-667.43

Finding the Fourth Proportional to 1,837.56, 2,756.63 and 667.43

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Solution

The fourth proportional to 1,837.56, 2,756.63 and 667.43 is: 1,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837.56 : 2,756.63 = 667.43 : x
  2. Step 2: Convert to fraction form
    1,837.56/2,756.63 = 667.43/x
  3. Step 3: Cross multiply
    1,837.56x = 2,756.63 × 667.43
  4. Step 4: Simplify right side
    1,837.56x = 1,839,857.56
  5. Step 5: Solve for x
    x = 1,839,857.56/1,837.56
  6. Step 6: Final answer
    x = 1,001.25

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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.