Home / 3,451.80-5,177.70-3,106.20

Finding the Fourth Proportional to 3,451.80, 5,177.70 and 3,106.20

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Solution

The fourth proportional to 3,451.80, 5,177.70 and 3,106.20 is: 4,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.80 : 5,177.70 = 3,106.20 : x
  2. Step 2: Convert to fraction form
    3,451.80/5,177.70 = 3,106.20/x
  3. Step 3: Cross multiply
    3,451.80x = 5,177.70 × 3,106.20
  4. Step 4: Simplify right side
    3,451.80x = 16,082,971.74
  5. Step 5: Solve for x
    x = 16,082,971.74/3,451.80
  6. Step 6: Final answer
    x = 4,659.30

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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.