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Finding the Fourth Proportional to 693.77, 953.47 and 674.33

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Solution

The fourth proportional to 693.77, 953.47 and 674.33 is: 926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.77 : 953.47 = 674.33 : x
  2. Step 2: Convert to fraction form
    693.77/953.47 = 674.33/x
  3. Step 3: Cross multiply
    693.77x = 953.47 × 674.33
  4. Step 4: Simplify right side
    693.77x = 642,949.50
  5. Step 5: Solve for x
    x = 642,949.50/693.77
  6. Step 6: Final answer
    x = 926.75

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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.