Home / 2,220.85-3,063.63-1,801.68

Finding the Fourth Proportional to 2,220.85, 3,063.63 and 1,801.68

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Solution

The fourth proportional to 2,220.85, 3,063.63 and 1,801.68 is: 2,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.85 : 3,063.63 = 1,801.68 : x
  2. Step 2: Convert to fraction form
    2,220.85/3,063.63 = 1,801.68/x
  3. Step 3: Cross multiply
    2,220.85x = 3,063.63 × 1,801.68
  4. Step 4: Simplify right side
    2,220.85x = 5,519,680.90
  5. Step 5: Solve for x
    x = 5,519,680.90/2,220.85
  6. Step 6: Final answer
    x = 2,485.39

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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.