Home / 5,412.77-8,119.43-2,641.80

Finding the Fourth Proportional to 5,412.77, 8,119.43 and 2,641.80

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Solution

The fourth proportional to 5,412.77, 8,119.43 and 2,641.80 is: 3,962.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.77 : 8,119.43 = 2,641.80 : x
  2. Step 2: Convert to fraction form
    5,412.77/8,119.43 = 2,641.80/x
  3. Step 3: Cross multiply
    5,412.77x = 8,119.43 × 2,641.80
  4. Step 4: Simplify right side
    5,412.77x = 21,449,896.97
  5. Step 5: Solve for x
    x = 21,449,896.97/5,412.77
  6. Step 6: Final answer
    x = 3,962.84

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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.