Home / 3,431.08-4,732.39-2,172.34

Finding the Fourth Proportional to 3,431.08, 4,732.39 and 2,172.34

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Solution

The fourth proportional to 3,431.08, 4,732.39 and 2,172.34 is: 2,996.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.08 : 4,732.39 = 2,172.34 : x
  2. Step 2: Convert to fraction form
    3,431.08/4,732.39 = 2,172.34/x
  3. Step 3: Cross multiply
    3,431.08x = 4,732.39 × 2,172.34
  4. Step 4: Simplify right side
    3,431.08x = 10,280,360.09
  5. Step 5: Solve for x
    x = 10,280,360.09/3,431.08
  6. Step 6: Final answer
    x = 2,996.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.