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Finding the Fourth Proportional to 1,636.13, 2,257.88 and 937.50

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Solution

The fourth proportional to 1,636.13, 2,257.88 and 937.50 is: 1,293.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.13 : 2,257.88 = 937.50 : x
  2. Step 2: Convert to fraction form
    1,636.13/2,257.88 = 937.50/x
  3. Step 3: Cross multiply
    1,636.13x = 2,257.88 × 937.50
  4. Step 4: Simplify right side
    1,636.13x = 2,116,757.81
  5. Step 5: Solve for x
    x = 2,116,757.81/1,636.13
  6. Step 6: Final answer
    x = 1,293.76

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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.