Home / 1,418.38-1,952.51-1,230.77

Finding the Fourth Proportional to 1,418.38, 1,952.51 and 1,230.77

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Solution

The fourth proportional to 1,418.38, 1,952.51 and 1,230.77 is: 1,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.38 : 1,952.51 = 1,230.77 : x
  2. Step 2: Convert to fraction form
    1,418.38/1,952.51 = 1,230.77/x
  3. Step 3: Cross multiply
    1,418.38x = 1,952.51 × 1,230.77
  4. Step 4: Simplify right side
    1,418.38x = 2,403,090.73
  5. Step 5: Solve for x
    x = 2,403,090.73/1,418.38
  6. Step 6: Final answer
    x = 1,694.25

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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.