Home / 4,119.20-6,177.20-1,779.20

Finding the Fourth Proportional to 4,119.20, 6,177.20 and 1,779.20

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Solution

The fourth proportional to 4,119.20, 6,177.20 and 1,779.20 is: 2,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.20 : 6,177.20 = 1,779.20 : x
  2. Step 2: Convert to fraction form
    4,119.20/6,177.20 = 1,779.20/x
  3. Step 3: Cross multiply
    4,119.20x = 6,177.20 × 1,779.20
  4. Step 4: Simplify right side
    4,119.20x = 10,990,474.24
  5. Step 5: Solve for x
    x = 10,990,474.24/4,119.20
  6. Step 6: Final answer
    x = 2,668.11

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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.