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Finding the Fourth Proportional to 1,263.58, 1,893.97 and 954.43

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Solution

The fourth proportional to 1,263.58, 1,893.97 and 954.43 is: 1,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.58 : 1,893.97 = 954.43 : x
  2. Step 2: Convert to fraction form
    1,263.58/1,893.97 = 954.43/x
  3. Step 3: Cross multiply
    1,263.58x = 1,893.97 × 954.43
  4. Step 4: Simplify right side
    1,263.58x = 1,807,661.79
  5. Step 5: Solve for x
    x = 1,807,661.79/1,263.58
  6. Step 6: Final answer
    x = 1,430.59

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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.