Home / 1,033.03-1,425.21-679.15

Finding the Fourth Proportional to 1,033.03, 1,425.21 and 679.15

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Solution

The fourth proportional to 1,033.03, 1,425.21 and 679.15 is: 936.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.03 : 1,425.21 = 679.15 : x
  2. Step 2: Convert to fraction form
    1,033.03/1,425.21 = 679.15/x
  3. Step 3: Cross multiply
    1,033.03x = 1,425.21 × 679.15
  4. Step 4: Simplify right side
    1,033.03x = 967,929.51
  5. Step 5: Solve for x
    x = 967,929.51/1,033.03
  6. Step 6: Final answer
    x = 936.98

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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.