Home / 3,145.26-4,722.50-1,761.30

Finding the Fourth Proportional to 3,145.26, 4,722.50 and 1,761.30

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Solution

The fourth proportional to 3,145.26, 4,722.50 and 1,761.30 is: 2,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.26 : 4,722.50 = 1,761.30 : x
  2. Step 2: Convert to fraction form
    3,145.26/4,722.50 = 1,761.30/x
  3. Step 3: Cross multiply
    3,145.26x = 4,722.50 × 1,761.30
  4. Step 4: Simplify right side
    3,145.26x = 8,317,739.25
  5. Step 5: Solve for x
    x = 8,317,739.25/3,145.26
  6. Step 6: Final answer
    x = 2,644.53

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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.