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Finding the Fourth Proportional to 1,096.67, 1,643.70 and 633.49

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Solution

The fourth proportional to 1,096.67, 1,643.70 and 633.49 is: 949.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096.67 : 1,643.70 = 633.49 : x
  2. Step 2: Convert to fraction form
    1,096.67/1,643.70 = 633.49/x
  3. Step 3: Cross multiply
    1,096.67x = 1,643.70 × 633.49
  4. Step 4: Simplify right side
    1,096.67x = 1,041,267.51
  5. Step 5: Solve for x
    x = 1,041,267.51/1,096.67
  6. Step 6: Final answer
    x = 949.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.