Home / 5,420.67-8,129.37-2,300.62

Finding the Fourth Proportional to 5,420.67, 8,129.37 and 2,300.62

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Solution

The fourth proportional to 5,420.67, 8,129.37 and 2,300.62 is: 3,450.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.67 : 8,129.37 = 2,300.62 : x
  2. Step 2: Convert to fraction form
    5,420.67/8,129.37 = 2,300.62/x
  3. Step 3: Cross multiply
    5,420.67x = 8,129.37 × 2,300.62
  4. Step 4: Simplify right side
    5,420.67x = 18,702,591.21
  5. Step 5: Solve for x
    x = 18,702,591.21/5,420.67
  6. Step 6: Final answer
    x = 3,450.24

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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.