Home / 2,517.90-3,778.19-1,830.25

Finding the Fourth Proportional to 2,517.90, 3,778.19 and 1,830.25

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Solution

The fourth proportional to 2,517.90, 3,778.19 and 1,830.25 is: 2,746.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.90 : 3,778.19 = 1,830.25 : x
  2. Step 2: Convert to fraction form
    2,517.90/3,778.19 = 1,830.25/x
  3. Step 3: Cross multiply
    2,517.90x = 3,778.19 × 1,830.25
  4. Step 4: Simplify right side
    2,517.90x = 6,915,004.21
  5. Step 5: Solve for x
    x = 6,915,004.21/2,517.90
  6. Step 6: Final answer
    x = 2,746.34

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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.