Home / 3,211.20-4,813.56-1,747.32

Finding the Fourth Proportional to 3,211.20, 4,813.56 and 1,747.32

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Solution

The fourth proportional to 3,211.20, 4,813.56 and 1,747.32 is: 2,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.20 : 4,813.56 = 1,747.32 : x
  2. Step 2: Convert to fraction form
    3,211.20/4,813.56 = 1,747.32/x
  3. Step 3: Cross multiply
    3,211.20x = 4,813.56 × 1,747.32
  4. Step 4: Simplify right side
    3,211.20x = 8,410,829.66
  5. Step 5: Solve for x
    x = 8,410,829.66/3,211.20
  6. Step 6: Final answer
    x = 2,619.22

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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.