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Finding the Fourth Proportional to 952.75, 1,314.80 and 538.75

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Solution

The fourth proportional to 952.75, 1,314.80 and 538.75 is: 743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.75 : 1,314.80 = 538.75 : x
  2. Step 2: Convert to fraction form
    952.75/1,314.80 = 538.75/x
  3. Step 3: Cross multiply
    952.75x = 1,314.80 × 538.75
  4. Step 4: Simplify right side
    952.75x = 708,348.50
  5. Step 5: Solve for x
    x = 708,348.50/952.75
  6. Step 6: Final answer
    x = 743.48

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1.5x scale

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.