Home / 3,115.85-4,675.71-1,169.42

Finding the Fourth Proportional to 3,115.85, 4,675.71 and 1,169.42

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Solution

The fourth proportional to 3,115.85, 4,675.71 and 1,169.42 is: 1,754.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.85 : 4,675.71 = 1,169.42 : x
  2. Step 2: Convert to fraction form
    3,115.85/4,675.71 = 1,169.42/x
  3. Step 3: Cross multiply
    3,115.85x = 4,675.71 × 1,169.42
  4. Step 4: Simplify right side
    3,115.85x = 5,467,868.79
  5. Step 5: Solve for x
    x = 5,467,868.79/3,115.85
  6. Step 6: Final answer
    x = 1,754.86

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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.