Home / 4,909.14-7,359.26-1,787.81

Finding the Fourth Proportional to 4,909.14, 7,359.26 and 1,787.81

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Solution

The fourth proportional to 4,909.14, 7,359.26 and 1,787.81 is: 2,680.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.14 : 7,359.26 = 1,787.81 : x
  2. Step 2: Convert to fraction form
    4,909.14/7,359.26 = 1,787.81/x
  3. Step 3: Cross multiply
    4,909.14x = 7,359.26 × 1,787.81
  4. Step 4: Simplify right side
    4,909.14x = 13,156,912.89
  5. Step 5: Solve for x
    x = 13,156,912.89/4,909.14
  6. Step 6: Final answer
    x = 2,680.09

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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.