Home / 2,953.62-4,076.39-1,908.72

Finding the Fourth Proportional to 2,953.62, 4,076.39 and 1,908.72

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Solution

The fourth proportional to 2,953.62, 4,076.39 and 1,908.72 is: 2,634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.62 : 4,076.39 = 1,908.72 : x
  2. Step 2: Convert to fraction form
    2,953.62/4,076.39 = 1,908.72/x
  3. Step 3: Cross multiply
    2,953.62x = 4,076.39 × 1,908.72
  4. Step 4: Simplify right side
    2,953.62x = 7,780,687.12
  5. Step 5: Solve for x
    x = 7,780,687.12/2,953.62
  6. Step 6: Final answer
    x = 2,634.29

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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.