Home / 5,425.21-8,138.42-1,726.14

Finding the Fourth Proportional to 5,425.21, 8,138.42 and 1,726.14

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Solution

The fourth proportional to 5,425.21, 8,138.42 and 1,726.14 is: 2,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.21 : 8,138.42 = 1,726.14 : x
  2. Step 2: Convert to fraction form
    5,425.21/8,138.42 = 1,726.14/x
  3. Step 3: Cross multiply
    5,425.21x = 8,138.42 × 1,726.14
  4. Step 4: Simplify right side
    5,425.21x = 14,048,064.01
  5. Step 5: Solve for x
    x = 14,048,064.01/5,425.21
  6. Step 6: Final answer
    x = 2,589.40

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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.