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Finding the Fourth Proportional to 2,093.61, 3,140.93 and 632.68

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Solution

The fourth proportional to 2,093.61, 3,140.93 and 632.68 is: 949.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.61 : 3,140.93 = 632.68 : x
  2. Step 2: Convert to fraction form
    2,093.61/3,140.93 = 632.68/x
  3. Step 3: Cross multiply
    2,093.61x = 3,140.93 × 632.68
  4. Step 4: Simplify right side
    2,093.61x = 1,987,200.43
  5. Step 5: Solve for x
    x = 1,987,200.43/2,093.61
  6. Step 6: Final answer
    x = 949.17

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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.