Home / 2,876.54-4,311.19-1,231.14

Finding the Fourth Proportional to 2,876.54, 4,311.19 and 1,231.14

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Solution

The fourth proportional to 2,876.54, 4,311.19 and 1,231.14 is: 1,845.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.54 : 4,311.19 = 1,231.14 : x
  2. Step 2: Convert to fraction form
    2,876.54/4,311.19 = 1,231.14/x
  3. Step 3: Cross multiply
    2,876.54x = 4,311.19 × 1,231.14
  4. Step 4: Simplify right side
    2,876.54x = 5,307,678.46
  5. Step 5: Solve for x
    x = 5,307,678.46/2,876.54
  6. Step 6: Final answer
    x = 1,845.16

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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.