Home / 1,635.40-2,448.42-1,226.44

Finding the Fourth Proportional to 1,635.40, 2,448.42 and 1,226.44

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Solution

The fourth proportional to 1,635.40, 2,448.42 and 1,226.44 is: 1,836.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.40 : 2,448.42 = 1,226.44 : x
  2. Step 2: Convert to fraction form
    1,635.40/2,448.42 = 1,226.44/x
  3. Step 3: Cross multiply
    1,635.40x = 2,448.42 × 1,226.44
  4. Step 4: Simplify right side
    1,635.40x = 3,002,840.22
  5. Step 5: Solve for x
    x = 3,002,840.22/1,635.40
  6. Step 6: Final answer
    x = 1,836.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.