Home / 5,535.76-7,640.60-3,771.60

Finding the Fourth Proportional to 5,535.76, 7,640.60 and 3,771.60

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Solution

The fourth proportional to 5,535.76, 7,640.60 and 3,771.60 is: 5,205.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.76 : 7,640.60 = 3,771.60 : x
  2. Step 2: Convert to fraction form
    5,535.76/7,640.60 = 3,771.60/x
  3. Step 3: Cross multiply
    5,535.76x = 7,640.60 × 3,771.60
  4. Step 4: Simplify right side
    5,535.76x = 28,817,286.96
  5. Step 5: Solve for x
    x = 28,817,286.96/5,535.76
  6. Step 6: Final answer
    x = 5,205.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.