Home / 3,783.57-5,220.55-2,211.36

Finding the Fourth Proportional to 3,783.57, 5,220.55 and 2,211.36

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Solution

The fourth proportional to 3,783.57, 5,220.55 and 2,211.36 is: 3,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.57 : 5,220.55 = 2,211.36 : x
  2. Step 2: Convert to fraction form
    3,783.57/5,220.55 = 2,211.36/x
  3. Step 3: Cross multiply
    3,783.57x = 5,220.55 × 2,211.36
  4. Step 4: Simplify right side
    3,783.57x = 11,544,515.45
  5. Step 5: Solve for x
    x = 11,544,515.45/3,783.57
  6. Step 6: Final answer
    x = 3,051.22

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Half scale
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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.