Home / 5,425.18-8,138.38-1,726.56

Finding the Fourth Proportional to 5,425.18, 8,138.38 and 1,726.56

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Solution

The fourth proportional to 5,425.18, 8,138.38 and 1,726.56 is: 2,590.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.18 : 8,138.38 = 1,726.56 : x
  2. Step 2: Convert to fraction form
    5,425.18/8,138.38 = 1,726.56/x
  3. Step 3: Cross multiply
    5,425.18x = 8,138.38 × 1,726.56
  4. Step 4: Simplify right side
    5,425.18x = 14,051,352.05
  5. Step 5: Solve for x
    x = 14,051,352.05/5,425.18
  6. Step 6: Final answer
    x = 2,590.02

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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.