Home / 1,238.89-1,851.08-1,195.84

Finding the Fourth Proportional to 1,238.89, 1,851.08 and 1,195.84

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Solution

The fourth proportional to 1,238.89, 1,851.08 and 1,195.84 is: 1,786.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238.89 : 1,851.08 = 1,195.84 : x
  2. Step 2: Convert to fraction form
    1,238.89/1,851.08 = 1,195.84/x
  3. Step 3: Cross multiply
    1,238.89x = 1,851.08 × 1,195.84
  4. Step 4: Simplify right side
    1,238.89x = 2,213,595.51
  5. Step 5: Solve for x
    x = 2,213,595.51/1,238.89
  6. Step 6: Final answer
    x = 1,786.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.