Home / 5,427.30-8,142.10-1,729.84

Finding the Fourth Proportional to 5,427.30, 8,142.10 and 1,729.84

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Solution

The fourth proportional to 5,427.30, 8,142.10 and 1,729.84 is: 2,595.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.30 : 8,142.10 = 1,729.84 : x
  2. Step 2: Convert to fraction form
    5,427.30/8,142.10 = 1,729.84/x
  3. Step 3: Cross multiply
    5,427.30x = 8,142.10 × 1,729.84
  4. Step 4: Simplify right side
    5,427.30x = 14,084,530.58
  5. Step 5: Solve for x
    x = 14,084,530.58/5,427.30
  6. Step 6: Final answer
    x = 2,595.12

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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.