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Finding the Fourth Proportional to 3,354, 4,628.64 and 1,956.72

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Solution

The fourth proportional to 3,354, 4,628.64 and 1,956.72 is: 2,700.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354 : 4,628.64 = 1,956.72 : x
  2. Step 2: Convert to fraction form
    3,354/4,628.64 = 1,956.72/x
  3. Step 3: Cross multiply
    3,354x = 4,628.64 × 1,956.72
  4. Step 4: Simplify right side
    3,354x = 9,056,952.46
  5. Step 5: Solve for x
    x = 9,056,952.46/3,354
  6. Step 6: Final answer
    x = 2,700.34

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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.