Home / 2,643.27-3,960.01-1,325.48

Finding the Fourth Proportional to 2,643.27, 3,960.01 and 1,325.48

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Solution

The fourth proportional to 2,643.27, 3,960.01 and 1,325.48 is: 1,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.27 : 3,960.01 = 1,325.48 : x
  2. Step 2: Convert to fraction form
    2,643.27/3,960.01 = 1,325.48/x
  3. Step 3: Cross multiply
    2,643.27x = 3,960.01 × 1,325.48
  4. Step 4: Simplify right side
    2,643.27x = 5,248,910.73
  5. Step 5: Solve for x
    x = 5,248,910.73/2,643.27
  6. Step 6: Final answer
    x = 1,985.77

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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.