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Finding the Fourth Proportional to 695.70, 965.30 and 675.54

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Solution

The fourth proportional to 695.70, 965.30 and 675.54 is: 937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.70 : 965.30 = 675.54 : x
  2. Step 2: Convert to fraction form
    695.70/965.30 = 675.54/x
  3. Step 3: Cross multiply
    695.70x = 965.30 × 675.54
  4. Step 4: Simplify right side
    695.70x = 652,095.38
  5. Step 5: Solve for x
    x = 652,095.38/695.70
  6. Step 6: Final answer
    x = 937.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.