Home / 5,515.19-8,272.78-1,622.33

Finding the Fourth Proportional to 5,515.19, 8,272.78 and 1,622.33

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Solution

The fourth proportional to 5,515.19, 8,272.78 and 1,622.33 is: 2,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.19 : 8,272.78 = 1,622.33 : x
  2. Step 2: Convert to fraction form
    5,515.19/8,272.78 = 1,622.33/x
  3. Step 3: Cross multiply
    5,515.19x = 8,272.78 × 1,622.33
  4. Step 4: Simplify right side
    5,515.19x = 13,421,129.70
  5. Step 5: Solve for x
    x = 13,421,129.70/5,515.19
  6. Step 6: Final answer
    x = 2,433.49

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Double scale
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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.