Home / 5,406.94-8,112.53-2,119.47

Finding the Fourth Proportional to 5,406.94, 8,112.53 and 2,119.47

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Solution

The fourth proportional to 5,406.94, 8,112.53 and 2,119.47 is: 3,180.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.94 : 8,112.53 = 2,119.47 : x
  2. Step 2: Convert to fraction form
    5,406.94/8,112.53 = 2,119.47/x
  3. Step 3: Cross multiply
    5,406.94x = 8,112.53 × 2,119.47
  4. Step 4: Simplify right side
    5,406.94x = 17,194,263.96
  5. Step 5: Solve for x
    x = 17,194,263.96/5,406.94
  6. Step 6: Final answer
    x = 3,180.04

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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.