Home / 1,254.26-1,729.40-1,185

Finding the Fourth Proportional to 1,254.26, 1,729.40 and 1,185

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Solution

The fourth proportional to 1,254.26, 1,729.40 and 1,185 is: 1,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.26 : 1,729.40 = 1,185 : x
  2. Step 2: Convert to fraction form
    1,254.26/1,729.40 = 1,185/x
  3. Step 3: Cross multiply
    1,254.26x = 1,729.40 × 1,185
  4. Step 4: Simplify right side
    1,254.26x = 2,049,339
  5. Step 5: Solve for x
    x = 2,049,339/1,254.26
  6. Step 6: Final answer
    x = 1,633.90

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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.