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Finding the Fourth Proportional to 633.60, 957.60 and 633.60

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Solution

The fourth proportional to 633.60, 957.60 and 633.60 is: 957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.60 : 957.60 = 633.60 : x
  2. Step 2: Convert to fraction form
    633.60/957.60 = 633.60/x
  3. Step 3: Cross multiply
    633.60x = 957.60 × 633.60
  4. Step 4: Simplify right side
    633.60x = 606,735.36
  5. Step 5: Solve for x
    x = 606,735.36/633.60
  6. Step 6: Final answer
    x = 957.60

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.