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Finding the Fourth Proportional to 1,936.20, 2,900.42 and 894.79

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Solution

The fourth proportional to 1,936.20, 2,900.42 and 894.79 is: 1,340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.20 : 2,900.42 = 894.79 : x
  2. Step 2: Convert to fraction form
    1,936.20/2,900.42 = 894.79/x
  3. Step 3: Cross multiply
    1,936.20x = 2,900.42 × 894.79
  4. Step 4: Simplify right side
    1,936.20x = 2,595,266.81
  5. Step 5: Solve for x
    x = 2,595,266.81/1,936.20
  6. Step 6: Final answer
    x = 1,340.39

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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.