Home / 2,742.12-3,784.73-1,623.31

Finding the Fourth Proportional to 2,742.12, 3,784.73 and 1,623.31

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Solution

The fourth proportional to 2,742.12, 3,784.73 and 1,623.31 is: 2,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.12 : 3,784.73 = 1,623.31 : x
  2. Step 2: Convert to fraction form
    2,742.12/3,784.73 = 1,623.31/x
  3. Step 3: Cross multiply
    2,742.12x = 3,784.73 × 1,623.31
  4. Step 4: Simplify right side
    2,742.12x = 6,143,772.48
  5. Step 5: Solve for x
    x = 6,143,772.48/2,742.12
  6. Step 6: Final answer
    x = 2,240.52

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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.