Home / 2,809.55-4,214.86-1,078.04

Finding the Fourth Proportional to 2,809.55, 4,214.86 and 1,078.04

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Solution

The fourth proportional to 2,809.55, 4,214.86 and 1,078.04 is: 1,617.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.55 : 4,214.86 = 1,078.04 : x
  2. Step 2: Convert to fraction form
    2,809.55/4,214.86 = 1,078.04/x
  3. Step 3: Cross multiply
    2,809.55x = 4,214.86 × 1,078.04
  4. Step 4: Simplify right side
    2,809.55x = 4,543,763.91
  5. Step 5: Solve for x
    x = 4,543,763.91/2,809.55
  6. Step 6: Final answer
    x = 1,617.26

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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.