Home / 1,185.30-1,634.49-1,158.48

Finding the Fourth Proportional to 1,185.30, 1,634.49 and 1,158.48

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Solution

The fourth proportional to 1,185.30, 1,634.49 and 1,158.48 is: 1,597.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185.30 : 1,634.49 = 1,158.48 : x
  2. Step 2: Convert to fraction form
    1,185.30/1,634.49 = 1,158.48/x
  3. Step 3: Cross multiply
    1,185.30x = 1,634.49 × 1,158.48
  4. Step 4: Simplify right side
    1,185.30x = 1,893,523.98
  5. Step 5: Solve for x
    x = 1,893,523.98/1,185.30
  6. Step 6: Final answer
    x = 1,597.51

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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.