Home / 2,146.29-2,961.03-1,261.77

Finding the Fourth Proportional to 2,146.29, 2,961.03 and 1,261.77

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Solution

The fourth proportional to 2,146.29, 2,961.03 and 1,261.77 is: 1,740.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.29 : 2,961.03 = 1,261.77 : x
  2. Step 2: Convert to fraction form
    2,146.29/2,961.03 = 1,261.77/x
  3. Step 3: Cross multiply
    2,146.29x = 2,961.03 × 1,261.77
  4. Step 4: Simplify right side
    2,146.29x = 3,736,138.82
  5. Step 5: Solve for x
    x = 3,736,138.82/2,146.29
  6. Step 6: Final answer
    x = 1,740.74

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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.