Home / 2,566.79-3,542.36-1,936.21

Finding the Fourth Proportional to 2,566.79, 3,542.36 and 1,936.21

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Solution

The fourth proportional to 2,566.79, 3,542.36 and 1,936.21 is: 2,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.79 : 3,542.36 = 1,936.21 : x
  2. Step 2: Convert to fraction form
    2,566.79/3,542.36 = 1,936.21/x
  3. Step 3: Cross multiply
    2,566.79x = 3,542.36 × 1,936.21
  4. Step 4: Simplify right side
    2,566.79x = 6,858,752.86
  5. Step 5: Solve for x
    x = 6,858,752.86/2,566.79
  6. Step 6: Final answer
    x = 2,672.11

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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.