Home / 5,427.88-8,142.41-1,729.25

Finding the Fourth Proportional to 5,427.88, 8,142.41 and 1,729.25

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Solution

The fourth proportional to 5,427.88, 8,142.41 and 1,729.25 is: 2,594.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.88 : 8,142.41 = 1,729.25 : x
  2. Step 2: Convert to fraction form
    5,427.88/8,142.41 = 1,729.25/x
  3. Step 3: Cross multiply
    5,427.88x = 8,142.41 × 1,729.25
  4. Step 4: Simplify right side
    5,427.88x = 14,080,246.91
  5. Step 5: Solve for x
    x = 14,080,246.91/5,427.88
  6. Step 6: Final answer
    x = 2,594.06

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1.5x scale

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.