Home / 3,772.47-5,204.58-2,780.12

Finding the Fourth Proportional to 3,772.47, 5,204.58 and 2,780.12

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Solution

The fourth proportional to 3,772.47, 5,204.58 and 2,780.12 is: 3,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.47 : 5,204.58 = 2,780.12 : x
  2. Step 2: Convert to fraction form
    3,772.47/5,204.58 = 2,780.12/x
  3. Step 3: Cross multiply
    3,772.47x = 5,204.58 × 2,780.12
  4. Step 4: Simplify right side
    3,772.47x = 14,469,330.93
  5. Step 5: Solve for x
    x = 14,469,330.93/3,772.47
  6. Step 6: Final answer
    x = 3,835.51

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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.