Home / 5,415.60-8,120.16-2,496.36

Finding the Fourth Proportional to 5,415.60, 8,120.16 and 2,496.36

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Solution

The fourth proportional to 5,415.60, 8,120.16 and 2,496.36 is: 3,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.60 : 8,120.16 = 2,496.36 : x
  2. Step 2: Convert to fraction form
    5,415.60/8,120.16 = 2,496.36/x
  3. Step 3: Cross multiply
    5,415.60x = 8,120.16 × 2,496.36
  4. Step 4: Simplify right side
    5,415.60x = 20,270,842.62
  5. Step 5: Solve for x
    x = 20,270,842.62/5,415.60
  6. Step 6: Final answer
    x = 3,743.05

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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.