Home / 2,613.56-3,914.82-1,787.96

Finding the Fourth Proportional to 2,613.56, 3,914.82 and 1,787.96

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Solution

The fourth proportional to 2,613.56, 3,914.82 and 1,787.96 is: 2,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.56 : 3,914.82 = 1,787.96 : x
  2. Step 2: Convert to fraction form
    2,613.56/3,914.82 = 1,787.96/x
  3. Step 3: Cross multiply
    2,613.56x = 3,914.82 × 1,787.96
  4. Step 4: Simplify right side
    2,613.56x = 6,999,541.57
  5. Step 5: Solve for x
    x = 6,999,541.57/2,613.56
  6. Step 6: Final answer
    x = 2,678.16

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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.