Home / 2,912.92-4,370.16-1,269.82

Finding the Fourth Proportional to 2,912.92, 4,370.16 and 1,269.82

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Solution

The fourth proportional to 2,912.92, 4,370.16 and 1,269.82 is: 1,905.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.92 : 4,370.16 = 1,269.82 : x
  2. Step 2: Convert to fraction form
    2,912.92/4,370.16 = 1,269.82/x
  3. Step 3: Cross multiply
    2,912.92x = 4,370.16 × 1,269.82
  4. Step 4: Simplify right side
    2,912.92x = 5,549,316.57
  5. Step 5: Solve for x
    x = 5,549,316.57/2,912.92
  6. Step 6: Final answer
    x = 1,905.07

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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.