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Finding the Fourth Proportional to 2,093.66, 3,140.50 and 632.80

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Solution

The fourth proportional to 2,093.66, 3,140.50 and 632.80 is: 949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.66 : 3,140.50 = 632.80 : x
  2. Step 2: Convert to fraction form
    2,093.66/3,140.50 = 632.80/x
  3. Step 3: Cross multiply
    2,093.66x = 3,140.50 × 632.80
  4. Step 4: Simplify right side
    2,093.66x = 1,987,308.40
  5. Step 5: Solve for x
    x = 1,987,308.40/2,093.66
  6. Step 6: Final answer
    x = 949.20

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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.