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Finding the Fourth Proportional to 952.68, 1,313.94 and 657.88

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Solution

The fourth proportional to 952.68, 1,313.94 and 657.88 is: 907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.68 : 1,313.94 = 657.88 : x
  2. Step 2: Convert to fraction form
    952.68/1,313.94 = 657.88/x
  3. Step 3: Cross multiply
    952.68x = 1,313.94 × 657.88
  4. Step 4: Simplify right side
    952.68x = 864,414.85
  5. Step 5: Solve for x
    x = 864,414.85/952.68
  6. Step 6: Final answer
    x = 907.35

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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.