Home / 5,425.74-8,138.67-2,305.35

Finding the Fourth Proportional to 5,425.74, 8,138.67 and 2,305.35

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Solution

The fourth proportional to 5,425.74, 8,138.67 and 2,305.35 is: 3,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.74 : 8,138.67 = 2,305.35 : x
  2. Step 2: Convert to fraction form
    5,425.74/8,138.67 = 2,305.35/x
  3. Step 3: Cross multiply
    5,425.74x = 8,138.67 × 2,305.35
  4. Step 4: Simplify right side
    5,425.74x = 18,762,482.88
  5. Step 5: Solve for x
    x = 18,762,482.88/5,425.74
  6. Step 6: Final answer
    x = 3,458.05

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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.