Home / 2,085.14-3,128.25-624.26

Finding the Fourth Proportional to 2,085.14, 3,128.25 and 624.26

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Solution

The fourth proportional to 2,085.14, 3,128.25 and 624.26 is: 936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.14 : 3,128.25 = 624.26 : x
  2. Step 2: Convert to fraction form
    2,085.14/3,128.25 = 624.26/x
  3. Step 3: Cross multiply
    2,085.14x = 3,128.25 × 624.26
  4. Step 4: Simplify right side
    2,085.14x = 1,952,841.35
  5. Step 5: Solve for x
    x = 1,952,841.35/2,085.14
  6. Step 6: Final answer
    x = 936.55

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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.