Home / 1,939.95-2,679.04-1,233.12

Finding the Fourth Proportional to 1,939.95, 2,679.04 and 1,233.12

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Solution

The fourth proportional to 1,939.95, 2,679.04 and 1,233.12 is: 1,702.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.95 : 2,679.04 = 1,233.12 : x
  2. Step 2: Convert to fraction form
    1,939.95/2,679.04 = 1,233.12/x
  3. Step 3: Cross multiply
    1,939.95x = 2,679.04 × 1,233.12
  4. Step 4: Simplify right side
    1,939.95x = 3,303,589.39
  5. Step 5: Solve for x
    x = 3,303,589.39/1,939.95
  6. Step 6: Final answer
    x = 1,702.93

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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.