Home / 3,142.40-4,333.92-2,400.56

Finding the Fourth Proportional to 3,142.40, 4,333.92 and 2,400.56

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Solution

The fourth proportional to 3,142.40, 4,333.92 and 2,400.56 is: 3,310.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.40 : 4,333.92 = 2,400.56 : x
  2. Step 2: Convert to fraction form
    3,142.40/4,333.92 = 2,400.56/x
  3. Step 3: Cross multiply
    3,142.40x = 4,333.92 × 2,400.56
  4. Step 4: Simplify right side
    3,142.40x = 10,403,835.00
  5. Step 5: Solve for x
    x = 10,403,835.00/3,142.40
  6. Step 6: Final answer
    x = 3,310.79

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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.