Home / 3,890.44-5,835.66-1,260.15

Finding the Fourth Proportional to 3,890.44, 5,835.66 and 1,260.15

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Solution

The fourth proportional to 3,890.44, 5,835.66 and 1,260.15 is: 1,890.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.44 : 5,835.66 = 1,260.15 : x
  2. Step 2: Convert to fraction form
    3,890.44/5,835.66 = 1,260.15/x
  3. Step 3: Cross multiply
    3,890.44x = 5,835.66 × 1,260.15
  4. Step 4: Simplify right side
    3,890.44x = 7,353,806.95
  5. Step 5: Solve for x
    x = 7,353,806.95/3,890.44
  6. Step 6: Final answer
    x = 1,890.23

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Similar ratio
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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.