Home / 1,680.94-2,317.80-1,183.42

Finding the Fourth Proportional to 1,680.94, 2,317.80 and 1,183.42

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Solution

The fourth proportional to 1,680.94, 2,317.80 and 1,183.42 is: 1,631.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.94 : 2,317.80 = 1,183.42 : x
  2. Step 2: Convert to fraction form
    1,680.94/2,317.80 = 1,183.42/x
  3. Step 3: Cross multiply
    1,680.94x = 2,317.80 × 1,183.42
  4. Step 4: Simplify right side
    1,680.94x = 2,742,930.88
  5. Step 5: Solve for x
    x = 2,742,930.88/1,680.94
  6. Step 6: Final answer
    x = 1,631.78

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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.