Home / 5,416.60-8,118.60-2,495.20

Finding the Fourth Proportional to 5,416.60, 8,118.60 and 2,495.20

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Solution

The fourth proportional to 5,416.60, 8,118.60 and 2,495.20 is: 3,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.60 : 8,118.60 = 2,495.20 : x
  2. Step 2: Convert to fraction form
    5,416.60/8,118.60 = 2,495.20/x
  3. Step 3: Cross multiply
    5,416.60x = 8,118.60 × 2,495.20
  4. Step 4: Simplify right side
    5,416.60x = 20,257,530.72
  5. Step 5: Solve for x
    x = 20,257,530.72/5,416.60
  6. Step 6: Final answer
    x = 3,739.90

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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.