Home / 2,127.79-3,196.70-1,252.54

Finding the Fourth Proportional to 2,127.79, 3,196.70 and 1,252.54

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Solution

The fourth proportional to 2,127.79, 3,196.70 and 1,252.54 is: 1,881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.79 : 3,196.70 = 1,252.54 : x
  2. Step 2: Convert to fraction form
    2,127.79/3,196.70 = 1,252.54/x
  3. Step 3: Cross multiply
    2,127.79x = 3,196.70 × 1,252.54
  4. Step 4: Simplify right side
    2,127.79x = 4,003,972.37
  5. Step 5: Solve for x
    x = 4,003,972.37/2,127.79
  6. Step 6: Final answer
    x = 1,881.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.