Home / 2,380.65-3,285.68-1,820.04

Finding the Fourth Proportional to 2,380.65, 3,285.68 and 1,820.04

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Solution

The fourth proportional to 2,380.65, 3,285.68 and 1,820.04 is: 2,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.65 : 3,285.68 = 1,820.04 : x
  2. Step 2: Convert to fraction form
    2,380.65/3,285.68 = 1,820.04/x
  3. Step 3: Cross multiply
    2,380.65x = 3,285.68 × 1,820.04
  4. Step 4: Simplify right side
    2,380.65x = 5,980,059.93
  5. Step 5: Solve for x
    x = 5,980,059.93/2,380.65
  6. Step 6: Final answer
    x = 2,511.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.