Home / 1,651.20-2,467.38-1,186.80

Finding the Fourth Proportional to 1,651.20, 2,467.38 and 1,186.80

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Solution

The fourth proportional to 1,651.20, 2,467.38 and 1,186.80 is: 1,773.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.20 : 2,467.38 = 1,186.80 : x
  2. Step 2: Convert to fraction form
    1,651.20/2,467.38 = 1,186.80/x
  3. Step 3: Cross multiply
    1,651.20x = 2,467.38 × 1,186.80
  4. Step 4: Simplify right side
    1,651.20x = 2,928,286.58
  5. Step 5: Solve for x
    x = 2,928,286.58/1,651.20
  6. Step 6: Final answer
    x = 1,773.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.