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Finding the Fourth Proportional to 3,468.64, 4,786.65 and 1,896.70

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Solution

The fourth proportional to 3,468.64, 4,786.65 and 1,896.70 is: 2,617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.64 : 4,786.65 = 1,896.70 : x
  2. Step 2: Convert to fraction form
    3,468.64/4,786.65 = 1,896.70/x
  3. Step 3: Cross multiply
    3,468.64x = 4,786.65 × 1,896.70
  4. Step 4: Simplify right side
    3,468.64x = 9,078,839.06
  5. Step 5: Solve for x
    x = 9,078,839.06/3,468.64
  6. Step 6: Final answer
    x = 2,617.41

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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.