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Finding the Fourth Proportional to 2,172.28, 3,258.96 and 633.28

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Solution

The fourth proportional to 2,172.28, 3,258.96 and 633.28 is: 950.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.28 : 3,258.96 = 633.28 : x
  2. Step 2: Convert to fraction form
    2,172.28/3,258.96 = 633.28/x
  3. Step 3: Cross multiply
    2,172.28x = 3,258.96 × 633.28
  4. Step 4: Simplify right side
    2,172.28x = 2,063,834.19
  5. Step 5: Solve for x
    x = 2,063,834.19/2,172.28
  6. Step 6: Final answer
    x = 950.08

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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.