Home / 3,212.34-4,431.69-2,162.58

Finding the Fourth Proportional to 3,212.34, 4,431.69 and 2,162.58

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Solution

The fourth proportional to 3,212.34, 4,431.69 and 2,162.58 is: 2,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.34 : 4,431.69 = 2,162.58 : x
  2. Step 2: Convert to fraction form
    3,212.34/4,431.69 = 2,162.58/x
  3. Step 3: Cross multiply
    3,212.34x = 4,431.69 × 2,162.58
  4. Step 4: Simplify right side
    3,212.34x = 9,583,884.16
  5. Step 5: Solve for x
    x = 9,583,884.16/3,212.34
  6. Step 6: Final answer
    x = 2,983.46

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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.