Home / 3,078.04-4,248.68-1,819.04

Finding the Fourth Proportional to 3,078.04, 4,248.68 and 1,819.04

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Solution

The fourth proportional to 3,078.04, 4,248.68 and 1,819.04 is: 2,510.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.04 : 4,248.68 = 1,819.04 : x
  2. Step 2: Convert to fraction form
    3,078.04/4,248.68 = 1,819.04/x
  3. Step 3: Cross multiply
    3,078.04x = 4,248.68 × 1,819.04
  4. Step 4: Simplify right side
    3,078.04x = 7,728,518.87
  5. Step 5: Solve for x
    x = 7,728,518.87/3,078.04
  6. Step 6: Final answer
    x = 2,510.86

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1.5x scale

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.