Home / 7,659.20-11,490.40-2,468.64

Finding the Fourth Proportional to 7,659.20, 11,490.40 and 2,468.64

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Solution

The fourth proportional to 7,659.20, 11,490.40 and 2,468.64 is: 3,703.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.20 : 11,490.40 = 2,468.64 : x
  2. Step 2: Convert to fraction form
    7,659.20/11,490.40 = 2,468.64/x
  3. Step 3: Cross multiply
    7,659.20x = 11,490.40 × 2,468.64
  4. Step 4: Simplify right side
    7,659.20x = 28,365,661.06
  5. Step 5: Solve for x
    x = 28,365,661.06/7,659.20
  6. Step 6: Final answer
    x = 3,703.48

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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.