Home / 4,119.60-6,178.20-2,271.60

Finding the Fourth Proportional to 4,119.60, 6,178.20 and 2,271.60

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Solution

The fourth proportional to 4,119.60, 6,178.20 and 2,271.60 is: 3,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.60 : 6,178.20 = 2,271.60 : x
  2. Step 2: Convert to fraction form
    4,119.60/6,178.20 = 2,271.60/x
  3. Step 3: Cross multiply
    4,119.60x = 6,178.20 × 2,271.60
  4. Step 4: Simplify right side
    4,119.60x = 14,034,399.12
  5. Step 5: Solve for x
    x = 14,034,399.12/4,119.60
  6. Step 6: Final answer
    x = 3,406.74

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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.