Home / 5,679.60-8,519.48-2,171.24

Finding the Fourth Proportional to 5,679.60, 8,519.48 and 2,171.24

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Solution

The fourth proportional to 5,679.60, 8,519.48 and 2,171.24 is: 3,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.60 : 8,519.48 = 2,171.24 : x
  2. Step 2: Convert to fraction form
    5,679.60/8,519.48 = 2,171.24/x
  3. Step 3: Cross multiply
    5,679.60x = 8,519.48 × 2,171.24
  4. Step 4: Simplify right side
    5,679.60x = 18,497,835.76
  5. Step 5: Solve for x
    x = 18,497,835.76/5,679.60
  6. Step 6: Final answer
    x = 3,256.89

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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.