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Finding the Fourth Proportional to 1,933.28, 2,900.28 and 634.64

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Solution

The fourth proportional to 1,933.28, 2,900.28 and 634.64 is: 952.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.28 : 2,900.28 = 634.64 : x
  2. Step 2: Convert to fraction form
    1,933.28/2,900.28 = 634.64/x
  3. Step 3: Cross multiply
    1,933.28x = 2,900.28 × 634.64
  4. Step 4: Simplify right side
    1,933.28x = 1,840,633.70
  5. Step 5: Solve for x
    x = 1,840,633.70/1,933.28
  6. Step 6: Final answer
    x = 952.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.