Home / 2,380.16-3,568.70-1,285.30

Finding the Fourth Proportional to 2,380.16, 3,568.70 and 1,285.30

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Solution

The fourth proportional to 2,380.16, 3,568.70 and 1,285.30 is: 1,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.16 : 3,568.70 = 1,285.30 : x
  2. Step 2: Convert to fraction form
    2,380.16/3,568.70 = 1,285.30/x
  3. Step 3: Cross multiply
    2,380.16x = 3,568.70 × 1,285.30
  4. Step 4: Simplify right side
    2,380.16x = 4,586,850.11
  5. Step 5: Solve for x
    x = 4,586,850.11/2,380.16
  6. Step 6: Final answer
    x = 1,927.12

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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.