Home / 1,936.45-2,905.11-637.83

Finding the Fourth Proportional to 1,936.45, 2,905.11 and 637.83

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Solution

The fourth proportional to 1,936.45, 2,905.11 and 637.83 is: 956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.45 : 2,905.11 = 637.83 : x
  2. Step 2: Convert to fraction form
    1,936.45/2,905.11 = 637.83/x
  3. Step 3: Cross multiply
    1,936.45x = 2,905.11 × 637.83
  4. Step 4: Simplify right side
    1,936.45x = 1,852,963.12
  5. Step 5: Solve for x
    x = 1,852,963.12/1,936.45
  6. Step 6: Final answer
    x = 956.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.