Home / 1,908.44-2,631.42-1,770.20

Finding the Fourth Proportional to 1,908.44, 2,631.42 and 1,770.20

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Solution

The fourth proportional to 1,908.44, 2,631.42 and 1,770.20 is: 2,440.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.44 : 2,631.42 = 1,770.20 : x
  2. Step 2: Convert to fraction form
    1,908.44/2,631.42 = 1,770.20/x
  3. Step 3: Cross multiply
    1,908.44x = 2,631.42 × 1,770.20
  4. Step 4: Simplify right side
    1,908.44x = 4,658,139.68
  5. Step 5: Solve for x
    x = 4,658,139.68/1,908.44
  6. Step 6: Final answer
    x = 2,440.81

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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.