Home / 2,873.10-4,311.35-1,207.09

Finding the Fourth Proportional to 2,873.10, 4,311.35 and 1,207.09

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Solution

The fourth proportional to 2,873.10, 4,311.35 and 1,207.09 is: 1,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.10 : 4,311.35 = 1,207.09 : x
  2. Step 2: Convert to fraction form
    2,873.10/4,311.35 = 1,207.09/x
  3. Step 3: Cross multiply
    2,873.10x = 4,311.35 × 1,207.09
  4. Step 4: Simplify right side
    2,873.10x = 5,204,187.47
  5. Step 5: Solve for x
    x = 5,204,187.47/2,873.10
  6. Step 6: Final answer
    x = 1,811.35

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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.