Home / 3,141.34-4,336.65-2,431.60

Finding the Fourth Proportional to 3,141.34, 4,336.65 and 2,431.60

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Solution

The fourth proportional to 3,141.34, 4,336.65 and 2,431.60 is: 3,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.34 : 4,336.65 = 2,431.60 : x
  2. Step 2: Convert to fraction form
    3,141.34/4,336.65 = 2,431.60/x
  3. Step 3: Cross multiply
    3,141.34x = 4,336.65 × 2,431.60
  4. Step 4: Simplify right side
    3,141.34x = 10,544,998.14
  5. Step 5: Solve for x
    x = 10,544,998.14/3,141.34
  6. Step 6: Final answer
    x = 3,356.85

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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.