Home / 5,480.28-8,220.52-1,782.50

Finding the Fourth Proportional to 5,480.28, 8,220.52 and 1,782.50

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Solution

The fourth proportional to 5,480.28, 8,220.52 and 1,782.50 is: 2,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.28 : 8,220.52 = 1,782.50 : x
  2. Step 2: Convert to fraction form
    5,480.28/8,220.52 = 1,782.50/x
  3. Step 3: Cross multiply
    5,480.28x = 8,220.52 × 1,782.50
  4. Step 4: Simplify right side
    5,480.28x = 14,653,076.90
  5. Step 5: Solve for x
    x = 14,653,076.90/5,480.28
  6. Step 6: Final answer
    x = 2,673.78

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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.