Home / 2,878.11-4,308.80-2,150.73

Finding the Fourth Proportional to 2,878.11, 4,308.80 and 2,150.73

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Solution

The fourth proportional to 2,878.11, 4,308.80 and 2,150.73 is: 3,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.11 : 4,308.80 = 2,150.73 : x
  2. Step 2: Convert to fraction form
    2,878.11/4,308.80 = 2,150.73/x
  3. Step 3: Cross multiply
    2,878.11x = 4,308.80 × 2,150.73
  4. Step 4: Simplify right side
    2,878.11x = 9,267,054.67
  5. Step 5: Solve for x
    x = 9,267,054.67/2,878.11
  6. Step 6: Final answer
    x = 3,219.84

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1.5x scale

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.