Home / 5,085.73-7,628.37-1,798.85

Finding the Fourth Proportional to 5,085.73, 7,628.37 and 1,798.85

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Solution

The fourth proportional to 5,085.73, 7,628.37 and 1,798.85 is: 2,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.73 : 7,628.37 = 1,798.85 : x
  2. Step 2: Convert to fraction form
    5,085.73/7,628.37 = 1,798.85/x
  3. Step 3: Cross multiply
    5,085.73x = 7,628.37 × 1,798.85
  4. Step 4: Simplify right side
    5,085.73x = 13,722,293.37
  5. Step 5: Solve for x
    x = 13,722,293.37/5,085.73
  6. Step 6: Final answer
    x = 2,698.20

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Double scale
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1.5x scale

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.