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Finding the Fourth Proportional to 1,362.89, 2,043.64 and 632.98

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Solution

The fourth proportional to 1,362.89, 2,043.64 and 632.98 is: 949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.89 : 2,043.64 = 632.98 : x
  2. Step 2: Convert to fraction form
    1,362.89/2,043.64 = 632.98/x
  3. Step 3: Cross multiply
    1,362.89x = 2,043.64 × 632.98
  4. Step 4: Simplify right side
    1,362.89x = 1,293,583.25
  5. Step 5: Solve for x
    x = 1,293,583.25/1,362.89
  6. Step 6: Final answer
    x = 949.15

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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.