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Finding the Fourth Proportional to 1,820.02, 2,729.68 and 832.61

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Solution

The fourth proportional to 1,820.02, 2,729.68 and 832.61 is: 1,248.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.02 : 2,729.68 = 832.61 : x
  2. Step 2: Convert to fraction form
    1,820.02/2,729.68 = 832.61/x
  3. Step 3: Cross multiply
    1,820.02x = 2,729.68 × 832.61
  4. Step 4: Simplify right side
    1,820.02x = 2,272,758.86
  5. Step 5: Solve for x
    x = 2,272,758.86/1,820.02
  6. Step 6: Final answer
    x = 1,248.75

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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.