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Finding the Fourth Proportional to 637.81, 960.29 and 561.26

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Solution

The fourth proportional to 637.81, 960.29 and 561.26 is: 845.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.81 : 960.29 = 561.26 : x
  2. Step 2: Convert to fraction form
    637.81/960.29 = 561.26/x
  3. Step 3: Cross multiply
    637.81x = 960.29 × 561.26
  4. Step 4: Simplify right side
    637.81x = 538,974.06
  5. Step 5: Solve for x
    x = 538,974.06/637.81
  6. Step 6: Final answer
    x = 845.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.