Home / 6,120.40-8,445.85-3,467.82

Finding the Fourth Proportional to 6,120.40, 8,445.85 and 3,467.82

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Solution

The fourth proportional to 6,120.40, 8,445.85 and 3,467.82 is: 4,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.40 : 8,445.85 = 3,467.82 : x
  2. Step 2: Convert to fraction form
    6,120.40/8,445.85 = 3,467.82/x
  3. Step 3: Cross multiply
    6,120.40x = 8,445.85 × 3,467.82
  4. Step 4: Simplify right side
    6,120.40x = 29,288,627.98
  5. Step 5: Solve for x
    x = 29,288,627.98/6,120.40
  6. Step 6: Final answer
    x = 4,785.41

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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.