Home / 1,426.54-1,961.06-1,226.63

Finding the Fourth Proportional to 1,426.54, 1,961.06 and 1,226.63

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Solution

The fourth proportional to 1,426.54, 1,961.06 and 1,226.63 is: 1,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.54 : 1,961.06 = 1,226.63 : x
  2. Step 2: Convert to fraction form
    1,426.54/1,961.06 = 1,226.63/x
  3. Step 3: Cross multiply
    1,426.54x = 1,961.06 × 1,226.63
  4. Step 4: Simplify right side
    1,426.54x = 2,405,495.03
  5. Step 5: Solve for x
    x = 2,405,495.03/1,426.54
  6. Step 6: Final answer
    x = 1,686.25

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.