Home / 5,262.30-7,878.87-2,659.80

Finding the Fourth Proportional to 5,262.30, 7,878.87 and 2,659.80

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Solution

The fourth proportional to 5,262.30, 7,878.87 and 2,659.80 is: 3,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.30 : 7,878.87 = 2,659.80 : x
  2. Step 2: Convert to fraction form
    5,262.30/7,878.87 = 2,659.80/x
  3. Step 3: Cross multiply
    5,262.30x = 7,878.87 × 2,659.80
  4. Step 4: Simplify right side
    5,262.30x = 20,956,218.43
  5. Step 5: Solve for x
    x = 20,956,218.43/5,262.30
  6. Step 6: Final answer
    x = 3,982.33

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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.