Home / 2,851.10-4,277.31-1,207.71

Finding the Fourth Proportional to 2,851.10, 4,277.31 and 1,207.71

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Solution

The fourth proportional to 2,851.10, 4,277.31 and 1,207.71 is: 1,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.10 : 4,277.31 = 1,207.71 : x
  2. Step 2: Convert to fraction form
    2,851.10/4,277.31 = 1,207.71/x
  3. Step 3: Cross multiply
    2,851.10x = 4,277.31 × 1,207.71
  4. Step 4: Simplify right side
    2,851.10x = 5,165,745.53
  5. Step 5: Solve for x
    x = 5,165,745.53/2,851.10
  6. Step 6: Final answer
    x = 1,811.84

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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.