Home / 2,634.78-3,957.63-2,090.79

Finding the Fourth Proportional to 2,634.78, 3,957.63 and 2,090.79

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Solution

The fourth proportional to 2,634.78, 3,957.63 and 2,090.79 is: 3,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,634.78 : 3,957.63 = 2,090.79 : x
  2. Step 2: Convert to fraction form
    2,634.78/3,957.63 = 2,090.79/x
  3. Step 3: Cross multiply
    2,634.78x = 3,957.63 × 2,090.79
  4. Step 4: Simplify right side
    2,634.78x = 8,274,573.23
  5. Step 5: Solve for x
    x = 8,274,573.23/2,634.78
  6. Step 6: Final answer
    x = 3,140.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.