Home / 3,787.48-5,674.92-1,320.94

Finding the Fourth Proportional to 3,787.48, 5,674.92 and 1,320.94

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Solution

The fourth proportional to 3,787.48, 5,674.92 and 1,320.94 is: 1,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.48 : 5,674.92 = 1,320.94 : x
  2. Step 2: Convert to fraction form
    3,787.48/5,674.92 = 1,320.94/x
  3. Step 3: Cross multiply
    3,787.48x = 5,674.92 × 1,320.94
  4. Step 4: Simplify right side
    3,787.48x = 7,496,228.82
  5. Step 5: Solve for x
    x = 7,496,228.82/3,787.48
  6. Step 6: Final answer
    x = 1,979.21

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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.