Home / 3,931.53-5,427.27-2,672.58

Finding the Fourth Proportional to 3,931.53, 5,427.27 and 2,672.58

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Solution

The fourth proportional to 3,931.53, 5,427.27 and 2,672.58 is: 3,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.53 : 5,427.27 = 2,672.58 : x
  2. Step 2: Convert to fraction form
    3,931.53/5,427.27 = 2,672.58/x
  3. Step 3: Cross multiply
    3,931.53x = 5,427.27 × 2,672.58
  4. Step 4: Simplify right side
    3,931.53x = 14,504,813.26
  5. Step 5: Solve for x
    x = 14,504,813.26/3,931.53
  6. Step 6: Final answer
    x = 3,689.36

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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.