Home / 3,406.42-5,110.35-1,185.31

Finding the Fourth Proportional to 3,406.42, 5,110.35 and 1,185.31

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Solution

The fourth proportional to 3,406.42, 5,110.35 and 1,185.31 is: 1,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.42 : 5,110.35 = 1,185.31 : x
  2. Step 2: Convert to fraction form
    3,406.42/5,110.35 = 1,185.31/x
  3. Step 3: Cross multiply
    3,406.42x = 5,110.35 × 1,185.31
  4. Step 4: Simplify right side
    3,406.42x = 6,057,337.36
  5. Step 5: Solve for x
    x = 6,057,337.36/3,406.42
  6. Step 6: Final answer
    x = 1,778.21

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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.