Home / 3,787.10-5,679.84-1,811.60

Finding the Fourth Proportional to 3,787.10, 5,679.84 and 1,811.60

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Solution

The fourth proportional to 3,787.10, 5,679.84 and 1,811.60 is: 2,717.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.10 : 5,679.84 = 1,811.60 : x
  2. Step 2: Convert to fraction form
    3,787.10/5,679.84 = 1,811.60/x
  3. Step 3: Cross multiply
    3,787.10x = 5,679.84 × 1,811.60
  4. Step 4: Simplify right side
    3,787.10x = 10,289,598.14
  5. Step 5: Solve for x
    x = 10,289,598.14/3,787.10
  6. Step 6: Final answer
    x = 2,717.01

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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.