Home / 2,146.12-2,961.70-1,261.98

Finding the Fourth Proportional to 2,146.12, 2,961.70 and 1,261.98

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Solution

The fourth proportional to 2,146.12, 2,961.70 and 1,261.98 is: 1,741.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.12 : 2,961.70 = 1,261.98 : x
  2. Step 2: Convert to fraction form
    2,146.12/2,961.70 = 1,261.98/x
  3. Step 3: Cross multiply
    2,146.12x = 2,961.70 × 1,261.98
  4. Step 4: Simplify right side
    2,146.12x = 3,737,603.01
  5. Step 5: Solve for x
    x = 3,737,603.01/2,146.12
  6. Step 6: Final answer
    x = 1,741.56

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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.