Home / 5,459.24-8,189.60-2,172.68

Finding the Fourth Proportional to 5,459.24, 8,189.60 and 2,172.68

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Solution

The fourth proportional to 5,459.24, 8,189.60 and 2,172.68 is: 3,259.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.24 : 8,189.60 = 2,172.68 : x
  2. Step 2: Convert to fraction form
    5,459.24/8,189.60 = 2,172.68/x
  3. Step 3: Cross multiply
    5,459.24x = 8,189.60 × 2,172.68
  4. Step 4: Simplify right side
    5,459.24x = 17,793,380.13
  5. Step 5: Solve for x
    x = 17,793,380.13/5,459.24
  6. Step 6: Final answer
    x = 3,259.31

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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.