Home / 2,778.48-4,168.08-1,047.60

Finding the Fourth Proportional to 2,778.48, 4,168.08 and 1,047.60

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Solution

The fourth proportional to 2,778.48, 4,168.08 and 1,047.60 is: 1,571.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.48 : 4,168.08 = 1,047.60 : x
  2. Step 2: Convert to fraction form
    2,778.48/4,168.08 = 1,047.60/x
  3. Step 3: Cross multiply
    2,778.48x = 4,168.08 × 1,047.60
  4. Step 4: Simplify right side
    2,778.48x = 4,366,480.61
  5. Step 5: Solve for x
    x = 4,366,480.61/2,778.48
  6. Step 6: Final answer
    x = 1,571.54

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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.