Home / 5,121.89-7,671.59-4,234.33

Finding the Fourth Proportional to 5,121.89, 7,671.59 and 4,234.33

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Solution

The fourth proportional to 5,121.89, 7,671.59 and 4,234.33 is: 6,342.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.89 : 7,671.59 = 4,234.33 : x
  2. Step 2: Convert to fraction form
    5,121.89/7,671.59 = 4,234.33/x
  3. Step 3: Cross multiply
    5,121.89x = 7,671.59 × 4,234.33
  4. Step 4: Simplify right side
    5,121.89x = 32,484,069.15
  5. Step 5: Solve for x
    x = 32,484,069.15/5,121.89
  6. Step 6: Final answer
    x = 6,342.21

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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.