Home / 3,213.54-4,405.73-3,155.22

Finding the Fourth Proportional to 3,213.54, 4,405.73 and 3,155.22

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Solution

The fourth proportional to 3,213.54, 4,405.73 and 3,155.22 is: 4,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.54 : 4,405.73 = 3,155.22 : x
  2. Step 2: Convert to fraction form
    3,213.54/4,405.73 = 3,155.22/x
  3. Step 3: Cross multiply
    3,213.54x = 4,405.73 × 3,155.22
  4. Step 4: Simplify right side
    3,213.54x = 13,901,031.63
  5. Step 5: Solve for x
    x = 13,901,031.63/3,213.54
  6. Step 6: Final answer
    x = 4,325.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.