Home / 3,122.85-4,686.21-1,176.42

Finding the Fourth Proportional to 3,122.85, 4,686.21 and 1,176.42

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Solution

The fourth proportional to 3,122.85, 4,686.21 and 1,176.42 is: 1,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.85 : 4,686.21 = 1,176.42 : x
  2. Step 2: Convert to fraction form
    3,122.85/4,686.21 = 1,176.42/x
  3. Step 3: Cross multiply
    3,122.85x = 4,686.21 × 1,176.42
  4. Step 4: Simplify right side
    3,122.85x = 5,512,951.17
  5. Step 5: Solve for x
    x = 5,512,951.17/3,122.85
  6. Step 6: Final answer
    x = 1,765.36

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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.