Home / 2,661.60-3,992.40-2,479.35

Finding the Fourth Proportional to 2,661.60, 3,992.40 and 2,479.35

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Solution

The fourth proportional to 2,661.60, 3,992.40 and 2,479.35 is: 3,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.60 : 3,992.40 = 2,479.35 : x
  2. Step 2: Convert to fraction form
    2,661.60/3,992.40 = 2,479.35/x
  3. Step 3: Cross multiply
    2,661.60x = 3,992.40 × 2,479.35
  4. Step 4: Simplify right side
    2,661.60x = 9,898,556.94
  5. Step 5: Solve for x
    x = 9,898,556.94/2,661.60
  6. Step 6: Final answer
    x = 3,719.03

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Similar ratio
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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.