Home / 2,851.13-3,934.62-1,788.94

Finding the Fourth Proportional to 2,851.13, 3,934.62 and 1,788.94

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Solution

The fourth proportional to 2,851.13, 3,934.62 and 1,788.94 is: 2,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.13 : 3,934.62 = 1,788.94 : x
  2. Step 2: Convert to fraction form
    2,851.13/3,934.62 = 1,788.94/x
  3. Step 3: Cross multiply
    2,851.13x = 3,934.62 × 1,788.94
  4. Step 4: Simplify right side
    2,851.13x = 7,038,799.10
  5. Step 5: Solve for x
    x = 7,038,799.10/2,851.13
  6. Step 6: Final answer
    x = 2,468.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.