Home / 5,416.48-8,119.92-2,641.60

Finding the Fourth Proportional to 5,416.48, 8,119.92 and 2,641.60

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Solution

The fourth proportional to 5,416.48, 8,119.92 and 2,641.60 is: 3,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.48 : 8,119.92 = 2,641.60 : x
  2. Step 2: Convert to fraction form
    5,416.48/8,119.92 = 2,641.60/x
  3. Step 3: Cross multiply
    5,416.48x = 8,119.92 × 2,641.60
  4. Step 4: Simplify right side
    5,416.48x = 21,449,580.67
  5. Step 5: Solve for x
    x = 21,449,580.67/5,416.48
  6. Step 6: Final answer
    x = 3,960.06

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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.