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Finding the Fourth Proportional to 3,457.94, 4,772.18 and 1,965.29

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Solution

The fourth proportional to 3,457.94, 4,772.18 and 1,965.29 is: 2,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.94 : 4,772.18 = 1,965.29 : x
  2. Step 2: Convert to fraction form
    3,457.94/4,772.18 = 1,965.29/x
  3. Step 3: Cross multiply
    3,457.94x = 4,772.18 × 1,965.29
  4. Step 4: Simplify right side
    3,457.94x = 9,378,717.63
  5. Step 5: Solve for x
    x = 9,378,717.63/3,457.94
  6. Step 6: Final answer
    x = 2,712.23

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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.