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Finding the Fourth Proportional to 2,133.93, 2,936.29 and 1,636.38

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Solution

The fourth proportional to 2,133.93, 2,936.29 and 1,636.38 is: 2,251.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.93 : 2,936.29 = 1,636.38 : x
  2. Step 2: Convert to fraction form
    2,133.93/2,936.29 = 1,636.38/x
  3. Step 3: Cross multiply
    2,133.93x = 2,936.29 × 1,636.38
  4. Step 4: Simplify right side
    2,133.93x = 4,804,886.23
  5. Step 5: Solve for x
    x = 4,804,886.23/2,133.93
  6. Step 6: Final answer
    x = 2,251.66

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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.