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Finding the Fourth Proportional to 1,894.88, 2,835.84 and 1,851.68

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Solution

The fourth proportional to 1,894.88, 2,835.84 and 1,851.68 is: 2,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.88 : 2,835.84 = 1,851.68 : x
  2. Step 2: Convert to fraction form
    1,894.88/2,835.84 = 1,851.68/x
  3. Step 3: Cross multiply
    1,894.88x = 2,835.84 × 1,851.68
  4. Step 4: Simplify right side
    1,894.88x = 5,251,068.21
  5. Step 5: Solve for x
    x = 5,251,068.21/1,894.88
  6. Step 6: Final answer
    x = 2,771.19

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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.