Home / 5,427.14-8,142.53-1,729.89

Finding the Fourth Proportional to 5,427.14, 8,142.53 and 1,729.89

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Solution

The fourth proportional to 5,427.14, 8,142.53 and 1,729.89 is: 2,595.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.14 : 8,142.53 = 1,729.89 : x
  2. Step 2: Convert to fraction form
    5,427.14/8,142.53 = 1,729.89/x
  3. Step 3: Cross multiply
    5,427.14x = 8,142.53 × 1,729.89
  4. Step 4: Simplify right side
    5,427.14x = 14,085,672.57
  5. Step 5: Solve for x
    x = 14,085,672.57/5,427.14
  6. Step 6: Final answer
    x = 2,595.42

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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.