Home / 4,220.80-6,327.23-1,445.49

Finding the Fourth Proportional to 4,220.80, 6,327.23 and 1,445.49

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Solution

The fourth proportional to 4,220.80, 6,327.23 and 1,445.49 is: 2,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.80 : 6,327.23 = 1,445.49 : x
  2. Step 2: Convert to fraction form
    4,220.80/6,327.23 = 1,445.49/x
  3. Step 3: Cross multiply
    4,220.80x = 6,327.23 × 1,445.49
  4. Step 4: Simplify right side
    4,220.80x = 9,145,940.47
  5. Step 5: Solve for x
    x = 9,145,940.47/4,220.80
  6. Step 6: Final answer
    x = 2,166.87

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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.