Home / 3,464.22-4,780.80-2,138.70

Finding the Fourth Proportional to 3,464.22, 4,780.80 and 2,138.70

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Solution

The fourth proportional to 3,464.22, 4,780.80 and 2,138.70 is: 2,951.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,464.22 : 4,780.80 = 2,138.70 : x
  2. Step 2: Convert to fraction form
    3,464.22/4,780.80 = 2,138.70/x
  3. Step 3: Cross multiply
    3,464.22x = 4,780.80 × 2,138.70
  4. Step 4: Simplify right side
    3,464.22x = 10,224,696.96
  5. Step 5: Solve for x
    x = 10,224,696.96/3,464.22
  6. Step 6: Final answer
    x = 2,951.51

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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.