Home / 3,402.80-4,695.93-1,910.75

Finding the Fourth Proportional to 3,402.80, 4,695.93 and 1,910.75

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Solution

The fourth proportional to 3,402.80, 4,695.93 and 1,910.75 is: 2,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.80 : 4,695.93 = 1,910.75 : x
  2. Step 2: Convert to fraction form
    3,402.80/4,695.93 = 1,910.75/x
  3. Step 3: Cross multiply
    3,402.80x = 4,695.93 × 1,910.75
  4. Step 4: Simplify right side
    3,402.80x = 8,972,759.99
  5. Step 5: Solve for x
    x = 8,972,759.99/3,402.80
  6. Step 6: Final answer
    x = 2,636.88

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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.