Home / 3,823.60-5,278.76-2,630.38

Finding the Fourth Proportional to 3,823.60, 5,278.76 and 2,630.38

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Solution

The fourth proportional to 3,823.60, 5,278.76 and 2,630.38 is: 3,631.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.60 : 5,278.76 = 2,630.38 : x
  2. Step 2: Convert to fraction form
    3,823.60/5,278.76 = 2,630.38/x
  3. Step 3: Cross multiply
    3,823.60x = 5,278.76 × 2,630.38
  4. Step 4: Simplify right side
    3,823.60x = 13,885,144.73
  5. Step 5: Solve for x
    x = 13,885,144.73/3,823.60
  6. Step 6: Final answer
    x = 3,631.43

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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.