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Finding the Fourth Proportional to 1,618.52, 2,233.26 and 955.58

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Solution

The fourth proportional to 1,618.52, 2,233.26 and 955.58 is: 1,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.52 : 2,233.26 = 955.58 : x
  2. Step 2: Convert to fraction form
    1,618.52/2,233.26 = 955.58/x
  3. Step 3: Cross multiply
    1,618.52x = 2,233.26 × 955.58
  4. Step 4: Simplify right side
    1,618.52x = 2,134,058.59
  5. Step 5: Solve for x
    x = 2,134,058.59/1,618.52
  6. Step 6: Final answer
    x = 1,318.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.