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Finding the Fourth Proportional to 1,997.07, 2,995.79 and 957.57

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Solution

The fourth proportional to 1,997.07, 2,995.79 and 957.57 is: 1,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.07 : 2,995.79 = 957.57 : x
  2. Step 2: Convert to fraction form
    1,997.07/2,995.79 = 957.57/x
  3. Step 3: Cross multiply
    1,997.07x = 2,995.79 × 957.57
  4. Step 4: Simplify right side
    1,997.07x = 2,868,673.84
  5. Step 5: Solve for x
    x = 2,868,673.84/1,997.07
  6. Step 6: Final answer
    x = 1,436.44

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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.