Home / 5,081.05-7,619.95-2,615.55

Finding the Fourth Proportional to 5,081.05, 7,619.95 and 2,615.55

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Solution

The fourth proportional to 5,081.05, 7,619.95 and 2,615.55 is: 3,922.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.05 : 7,619.95 = 2,615.55 : x
  2. Step 2: Convert to fraction form
    5,081.05/7,619.95 = 2,615.55/x
  3. Step 3: Cross multiply
    5,081.05x = 7,619.95 × 2,615.55
  4. Step 4: Simplify right side
    5,081.05x = 19,930,360.22
  5. Step 5: Solve for x
    x = 19,930,360.22/5,081.05
  6. Step 6: Final answer
    x = 3,922.49

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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.