Home / 2,624.48-3,936.80-1,085.60

Finding the Fourth Proportional to 2,624.48, 3,936.80 and 1,085.60

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Solution

The fourth proportional to 2,624.48, 3,936.80 and 1,085.60 is: 1,628.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.48 : 3,936.80 = 1,085.60 : x
  2. Step 2: Convert to fraction form
    2,624.48/3,936.80 = 1,085.60/x
  3. Step 3: Cross multiply
    2,624.48x = 3,936.80 × 1,085.60
  4. Step 4: Simplify right side
    2,624.48x = 4,273,790.08
  5. Step 5: Solve for x
    x = 4,273,790.08/2,624.48
  6. Step 6: Final answer
    x = 1,628.43

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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.