Home / 4,119.76-6,177.75-1,520.88

Finding the Fourth Proportional to 4,119.76, 6,177.75 and 1,520.88

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Solution

The fourth proportional to 4,119.76, 6,177.75 and 1,520.88 is: 2,280.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.76 : 6,177.75 = 1,520.88 : x
  2. Step 2: Convert to fraction form
    4,119.76/6,177.75 = 1,520.88/x
  3. Step 3: Cross multiply
    4,119.76x = 6,177.75 × 1,520.88
  4. Step 4: Simplify right side
    4,119.76x = 9,395,616.42
  5. Step 5: Solve for x
    x = 9,395,616.42/4,119.76
  6. Step 6: Final answer
    x = 2,280.62

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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.