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Finding the Fourth Proportional to 1,786.99, 2,466.09 and 1,069.92

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Solution

The fourth proportional to 1,786.99, 2,466.09 and 1,069.92 is: 1,476.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.99 : 2,466.09 = 1,069.92 : x
  2. Step 2: Convert to fraction form
    1,786.99/2,466.09 = 1,069.92/x
  3. Step 3: Cross multiply
    1,786.99x = 2,466.09 × 1,069.92
  4. Step 4: Simplify right side
    1,786.99x = 2,638,509.07
  5. Step 5: Solve for x
    x = 2,638,509.07/1,786.99
  6. Step 6: Final answer
    x = 1,476.51

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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.