Home / 3,142.00-4,336.74-1,815.51

Finding the Fourth Proportional to 3,142.00, 4,336.74 and 1,815.51

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Solution

The fourth proportional to 3,142.00, 4,336.74 and 1,815.51 is: 2,505.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.00 : 4,336.74 = 1,815.51 : x
  2. Step 2: Convert to fraction form
    3,142.00/4,336.74 = 1,815.51/x
  3. Step 3: Cross multiply
    3,142.00x = 4,336.74 × 1,815.51
  4. Step 4: Simplify right side
    3,142.00x = 7,873,385.76
  5. Step 5: Solve for x
    x = 7,873,385.76/3,142.00
  6. Step 6: Final answer
    x = 2,505.86

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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.