Home / 2,830.90-3,910.38-2,360.34

Finding the Fourth Proportional to 2,830.90, 3,910.38 and 2,360.34

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Solution

The fourth proportional to 2,830.90, 3,910.38 and 2,360.34 is: 3,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.90 : 3,910.38 = 2,360.34 : x
  2. Step 2: Convert to fraction form
    2,830.90/3,910.38 = 2,360.34/x
  3. Step 3: Cross multiply
    2,830.90x = 3,910.38 × 2,360.34
  4. Step 4: Simplify right side
    2,830.90x = 9,229,806.78
  5. Step 5: Solve for x
    x = 9,229,806.78/2,830.90
  6. Step 6: Final answer
    x = 3,260.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.