Home / 3,400.87-4,693.25-1,908.70

Finding the Fourth Proportional to 3,400.87, 4,693.25 and 1,908.70

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Solution

The fourth proportional to 3,400.87, 4,693.25 and 1,908.70 is: 2,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.87 : 4,693.25 = 1,908.70 : x
  2. Step 2: Convert to fraction form
    3,400.87/4,693.25 = 1,908.70/x
  3. Step 3: Cross multiply
    3,400.87x = 4,693.25 × 1,908.70
  4. Step 4: Simplify right side
    3,400.87x = 8,958,006.28
  5. Step 5: Solve for x
    x = 8,958,006.28/3,400.87
  6. Step 6: Final answer
    x = 2,634.03

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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.