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Finding the Fourth Proportional to 1,400.43, 2,098.31 and 955.04

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Solution

The fourth proportional to 1,400.43, 2,098.31 and 955.04 is: 1,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.43 : 2,098.31 = 955.04 : x
  2. Step 2: Convert to fraction form
    1,400.43/2,098.31 = 955.04/x
  3. Step 3: Cross multiply
    1,400.43x = 2,098.31 × 955.04
  4. Step 4: Simplify right side
    1,400.43x = 2,003,961.88
  5. Step 5: Solve for x
    x = 2,003,961.88/1,400.43
  6. Step 6: Final answer
    x = 1,430.96

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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.