Home / 3,390.60-5,081.10-2,506.20

Finding the Fourth Proportional to 3,390.60, 5,081.10 and 2,506.20

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Solution

The fourth proportional to 3,390.60, 5,081.10 and 2,506.20 is: 3,755.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.60 : 5,081.10 = 2,506.20 : x
  2. Step 2: Convert to fraction form
    3,390.60/5,081.10 = 2,506.20/x
  3. Step 3: Cross multiply
    3,390.60x = 5,081.10 × 2,506.20
  4. Step 4: Simplify right side
    3,390.60x = 12,734,252.82
  5. Step 5: Solve for x
    x = 12,734,252.82/3,390.60
  6. Step 6: Final answer
    x = 3,755.75

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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.