Home / 3,143.20-4,338.46-1,884.30

Finding the Fourth Proportional to 3,143.20, 4,338.46 and 1,884.30

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Solution

The fourth proportional to 3,143.20, 4,338.46 and 1,884.30 is: 2,600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.20 : 4,338.46 = 1,884.30 : x
  2. Step 2: Convert to fraction form
    3,143.20/4,338.46 = 1,884.30/x
  3. Step 3: Cross multiply
    3,143.20x = 4,338.46 × 1,884.30
  4. Step 4: Simplify right side
    3,143.20x = 8,174,960.18
  5. Step 5: Solve for x
    x = 8,174,960.18/3,143.20
  6. Step 6: Final answer
    x = 2,600.84

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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.