Home / 5,480.25-8,220.39-1,376.25

Finding the Fourth Proportional to 5,480.25, 8,220.39 and 1,376.25

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Solution

The fourth proportional to 5,480.25, 8,220.39 and 1,376.25 is: 2,064.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.25 : 8,220.39 = 1,376.25 : x
  2. Step 2: Convert to fraction form
    5,480.25/8,220.39 = 1,376.25/x
  3. Step 3: Cross multiply
    5,480.25x = 8,220.39 × 1,376.25
  4. Step 4: Simplify right side
    5,480.25x = 11,313,311.74
  5. Step 5: Solve for x
    x = 11,313,311.74/5,480.25
  6. Step 6: Final answer
    x = 2,064.38

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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.