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Finding the Fourth Proportional to 1,163.92, 1,606.98 and 722.44

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Solution

The fourth proportional to 1,163.92, 1,606.98 and 722.44 is: 997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.92 : 1,606.98 = 722.44 : x
  2. Step 2: Convert to fraction form
    1,163.92/1,606.98 = 722.44/x
  3. Step 3: Cross multiply
    1,163.92x = 1,606.98 × 722.44
  4. Step 4: Simplify right side
    1,163.92x = 1,160,946.63
  5. Step 5: Solve for x
    x = 1,160,946.63/1,163.92
  6. Step 6: Final answer
    x = 997.45

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1.5x scale

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.