Home / 5,427.20-8,140.80-3,234.80

Finding the Fourth Proportional to 5,427.20, 8,140.80 and 3,234.80

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Solution

The fourth proportional to 5,427.20, 8,140.80 and 3,234.80 is: 4,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.20 : 8,140.80 = 3,234.80 : x
  2. Step 2: Convert to fraction form
    5,427.20/8,140.80 = 3,234.80/x
  3. Step 3: Cross multiply
    5,427.20x = 8,140.80 × 3,234.80
  4. Step 4: Simplify right side
    5,427.20x = 26,333,859.84
  5. Step 5: Solve for x
    x = 26,333,859.84/5,427.20
  6. Step 6: Final answer
    x = 4,852.20

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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.