Home / 3,221.42-4,445.67-1,876.94

Finding the Fourth Proportional to 3,221.42, 4,445.67 and 1,876.94

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Solution

The fourth proportional to 3,221.42, 4,445.67 and 1,876.94 is: 2,590.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.42 : 4,445.67 = 1,876.94 : x
  2. Step 2: Convert to fraction form
    3,221.42/4,445.67 = 1,876.94/x
  3. Step 3: Cross multiply
    3,221.42x = 4,445.67 × 1,876.94
  4. Step 4: Simplify right side
    3,221.42x = 8,344,255.85
  5. Step 5: Solve for x
    x = 8,344,255.85/3,221.42
  6. Step 6: Final answer
    x = 2,590.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.