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Finding the Fourth Proportional to 1,175.34, 1,622.03 and 651.38

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Solution

The fourth proportional to 1,175.34, 1,622.03 and 651.38 is: 898.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.34 : 1,622.03 = 651.38 : x
  2. Step 2: Convert to fraction form
    1,175.34/1,622.03 = 651.38/x
  3. Step 3: Cross multiply
    1,175.34x = 1,622.03 × 651.38
  4. Step 4: Simplify right side
    1,175.34x = 1,056,546.53
  5. Step 5: Solve for x
    x = 1,056,546.53/1,175.34
  6. Step 6: Final answer
    x = 898.93

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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.