Home / 3,142.60-4,336.03-1,816.22

Finding the Fourth Proportional to 3,142.60, 4,336.03 and 1,816.22

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Solution

The fourth proportional to 3,142.60, 4,336.03 and 1,816.22 is: 2,505.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.60 : 4,336.03 = 1,816.22 : x
  2. Step 2: Convert to fraction form
    3,142.60/4,336.03 = 1,816.22/x
  3. Step 3: Cross multiply
    3,142.60x = 4,336.03 × 1,816.22
  4. Step 4: Simplify right side
    3,142.60x = 7,875,197.52
  5. Step 5: Solve for x
    x = 7,875,197.52/3,142.60
  6. Step 6: Final answer
    x = 2,505.95

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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.