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Finding the Fourth Proportional to 951, 1,425.43 and 719.14

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Solution

The fourth proportional to 951, 1,425.43 and 719.14 is: 1,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    951 : 1,425.43 = 719.14 : x
  2. Step 2: Convert to fraction form
    951/1,425.43 = 719.14/x
  3. Step 3: Cross multiply
    951x = 1,425.43 × 719.14
  4. Step 4: Simplify right side
    951x = 1,025,078.37
  5. Step 5: Solve for x
    x = 1,025,078.37/951
  6. Step 6: Final answer
    x = 1,077.90

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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.