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Finding the Fourth Proportional to 952.20, 1,313.94 and 579.16

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Solution

The fourth proportional to 952.20, 1,313.94 and 579.16 is: 799.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.20 : 1,313.94 = 579.16 : x
  2. Step 2: Convert to fraction form
    952.20/1,313.94 = 579.16/x
  3. Step 3: Cross multiply
    952.20x = 1,313.94 × 579.16
  4. Step 4: Simplify right side
    952.20x = 760,981.49
  5. Step 5: Solve for x
    x = 760,981.49/952.20
  6. Step 6: Final answer
    x = 799.18

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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.