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Finding the Fourth Proportional to 693.92, 950.82 and 687.52

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Solution

The fourth proportional to 693.92, 950.82 and 687.52 is: 942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.92 : 950.82 = 687.52 : x
  2. Step 2: Convert to fraction form
    693.92/950.82 = 687.52/x
  3. Step 3: Cross multiply
    693.92x = 950.82 × 687.52
  4. Step 4: Simplify right side
    693.92x = 653,707.77
  5. Step 5: Solve for x
    x = 653,707.77/693.92
  6. Step 6: Final answer
    x = 942.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.