Home / 2,220.26-3,330.38-1,786.50

Finding the Fourth Proportional to 2,220.26, 3,330.38 and 1,786.50

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Solution

The fourth proportional to 2,220.26, 3,330.38 and 1,786.50 is: 2,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.26 : 3,330.38 = 1,786.50 : x
  2. Step 2: Convert to fraction form
    2,220.26/3,330.38 = 1,786.50/x
  3. Step 3: Cross multiply
    2,220.26x = 3,330.38 × 1,786.50
  4. Step 4: Simplify right side
    2,220.26x = 5,949,728.34
  5. Step 5: Solve for x
    x = 5,949,728.34/2,220.26
  6. Step 6: Final answer
    x = 2,679.75

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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.