Home / 1,222.84-1,835.88-675.28

Finding the Fourth Proportional to 1,222.84, 1,835.88 and 675.28

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Solution

The fourth proportional to 1,222.84, 1,835.88 and 675.28 is: 1,013.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.84 : 1,835.88 = 675.28 : x
  2. Step 2: Convert to fraction form
    1,222.84/1,835.88 = 675.28/x
  3. Step 3: Cross multiply
    1,222.84x = 1,835.88 × 675.28
  4. Step 4: Simplify right side
    1,222.84x = 1,239,733.05
  5. Step 5: Solve for x
    x = 1,239,733.05/1,222.84
  6. Step 6: Final answer
    x = 1,013.81

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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.