Home / 1,493.84-2,062.61-905.18

Finding the Fourth Proportional to 1,493.84, 2,062.61 and 905.18

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Solution

The fourth proportional to 1,493.84, 2,062.61 and 905.18 is: 1,249.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.84 : 2,062.61 = 905.18 : x
  2. Step 2: Convert to fraction form
    1,493.84/2,062.61 = 905.18/x
  3. Step 3: Cross multiply
    1,493.84x = 2,062.61 × 905.18
  4. Step 4: Simplify right side
    1,493.84x = 1,867,026.97
  5. Step 5: Solve for x
    x = 1,867,026.97/1,493.84
  6. Step 6: Final answer
    x = 1,249.82

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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.