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Finding the Fourth Proportional to 695.94, 957.60 and 679.53

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Solution

The fourth proportional to 695.94, 957.60 and 679.53 is: 935.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.94 : 957.60 = 679.53 : x
  2. Step 2: Convert to fraction form
    695.94/957.60 = 679.53/x
  3. Step 3: Cross multiply
    695.94x = 957.60 × 679.53
  4. Step 4: Simplify right side
    695.94x = 650,717.93
  5. Step 5: Solve for x
    x = 650,717.93/695.94
  6. Step 6: Final answer
    x = 935.02

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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.