Home / 3,507.40-5,246.70-3,161.80

Finding the Fourth Proportional to 3,507.40, 5,246.70 and 3,161.80

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Solution

The fourth proportional to 3,507.40, 5,246.70 and 3,161.80 is: 4,729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.40 : 5,246.70 = 3,161.80 : x
  2. Step 2: Convert to fraction form
    3,507.40/5,246.70 = 3,161.80/x
  3. Step 3: Cross multiply
    3,507.40x = 5,246.70 × 3,161.80
  4. Step 4: Simplify right side
    3,507.40x = 16,589,016.06
  5. Step 5: Solve for x
    x = 16,589,016.06/3,507.40
  6. Step 6: Final answer
    x = 4,729.72

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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.