Home / 3,388.15-5,074.30-2,930.95

Finding the Fourth Proportional to 3,388.15, 5,074.30 and 2,930.95

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Solution

The fourth proportional to 3,388.15, 5,074.30 and 2,930.95 is: 4,389.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.15 : 5,074.30 = 2,930.95 : x
  2. Step 2: Convert to fraction form
    3,388.15/5,074.30 = 2,930.95/x
  3. Step 3: Cross multiply
    3,388.15x = 5,074.30 × 2,930.95
  4. Step 4: Simplify right side
    3,388.15x = 14,872,519.59
  5. Step 5: Solve for x
    x = 14,872,519.59/3,388.15
  6. Step 6: Final answer
    x = 4,389.57

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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.