Home / 1,637.21-2,453.09-1,149.39

Finding the Fourth Proportional to 1,637.21, 2,453.09 and 1,149.39

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Solution

The fourth proportional to 1,637.21, 2,453.09 and 1,149.39 is: 1,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.21 : 2,453.09 = 1,149.39 : x
  2. Step 2: Convert to fraction form
    1,637.21/2,453.09 = 1,149.39/x
  3. Step 3: Cross multiply
    1,637.21x = 2,453.09 × 1,149.39
  4. Step 4: Simplify right side
    1,637.21x = 2,819,551.37
  5. Step 5: Solve for x
    x = 2,819,551.37/1,637.21
  6. Step 6: Final answer
    x = 1,722.17

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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.