Home / 4,119.55-6,175.56-1,778.09

Finding the Fourth Proportional to 4,119.55, 6,175.56 and 1,778.09

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Solution

The fourth proportional to 4,119.55, 6,175.56 and 1,778.09 is: 2,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.55 : 6,175.56 = 1,778.09 : x
  2. Step 2: Convert to fraction form
    4,119.55/6,175.56 = 1,778.09/x
  3. Step 3: Cross multiply
    4,119.55x = 6,175.56 × 1,778.09
  4. Step 4: Simplify right side
    4,119.55x = 10,980,701.48
  5. Step 5: Solve for x
    x = 10,980,701.48/4,119.55
  6. Step 6: Final answer
    x = 2,665.51

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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.