Home / 2,830.75-3,908.32-1,770.12

Finding the Fourth Proportional to 2,830.75, 3,908.32 and 1,770.12

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Solution

The fourth proportional to 2,830.75, 3,908.32 and 1,770.12 is: 2,443.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.75 : 3,908.32 = 1,770.12 : x
  2. Step 2: Convert to fraction form
    2,830.75/3,908.32 = 1,770.12/x
  3. Step 3: Cross multiply
    2,830.75x = 3,908.32 × 1,770.12
  4. Step 4: Simplify right side
    2,830.75x = 6,918,190.97
  5. Step 5: Solve for x
    x = 6,918,190.97/2,830.75
  6. Step 6: Final answer
    x = 2,443.94

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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.