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Finding the Fourth Proportional to 1,076.23, 1,610.26 and 637.71

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Solution

The fourth proportional to 1,076.23, 1,610.26 and 637.71 is: 954.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076.23 : 1,610.26 = 637.71 : x
  2. Step 2: Convert to fraction form
    1,076.23/1,610.26 = 637.71/x
  3. Step 3: Cross multiply
    1,076.23x = 1,610.26 × 637.71
  4. Step 4: Simplify right side
    1,076.23x = 1,026,878.90
  5. Step 5: Solve for x
    x = 1,026,878.90/1,076.23
  6. Step 6: Final answer
    x = 954.14

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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.