Home / 1,241.29-1,712.23-946.45

Finding the Fourth Proportional to 1,241.29, 1,712.23 and 946.45

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Solution

The fourth proportional to 1,241.29, 1,712.23 and 946.45 is: 1,305.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.29 : 1,712.23 = 946.45 : x
  2. Step 2: Convert to fraction form
    1,241.29/1,712.23 = 946.45/x
  3. Step 3: Cross multiply
    1,241.29x = 1,712.23 × 946.45
  4. Step 4: Simplify right side
    1,241.29x = 1,620,540.08
  5. Step 5: Solve for x
    x = 1,620,540.08/1,241.29
  6. Step 6: Final answer
    x = 1,305.53

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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.