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Finding the Fourth Proportional to 1,768.11, 2,440.01 and 1,022.10

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Solution

The fourth proportional to 1,768.11, 2,440.01 and 1,022.10 is: 1,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.11 : 2,440.01 = 1,022.10 : x
  2. Step 2: Convert to fraction form
    1,768.11/2,440.01 = 1,022.10/x
  3. Step 3: Cross multiply
    1,768.11x = 2,440.01 × 1,022.10
  4. Step 4: Simplify right side
    1,768.11x = 2,493,934.22
  5. Step 5: Solve for x
    x = 2,493,934.22/1,768.11
  6. Step 6: Final answer
    x = 1,410.51

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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.