Home / 1,223.74-1,836.75-675.16

Finding the Fourth Proportional to 1,223.74, 1,836.75 and 675.16

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Solution

The fourth proportional to 1,223.74, 1,836.75 and 675.16 is: 1,013.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.74 : 1,836.75 = 675.16 : x
  2. Step 2: Convert to fraction form
    1,223.74/1,836.75 = 675.16/x
  3. Step 3: Cross multiply
    1,223.74x = 1,836.75 × 675.16
  4. Step 4: Simplify right side
    1,223.74x = 1,240,100.13
  5. Step 5: Solve for x
    x = 1,240,100.13/1,223.74
  6. Step 6: Final answer
    x = 1,013.37

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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.