Home / 5,291.10-7,936.58-1,781.88

Finding the Fourth Proportional to 5,291.10, 7,936.58 and 1,781.88

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Solution

The fourth proportional to 5,291.10, 7,936.58 and 1,781.88 is: 2,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.10 : 7,936.58 = 1,781.88 : x
  2. Step 2: Convert to fraction form
    5,291.10/7,936.58 = 1,781.88/x
  3. Step 3: Cross multiply
    5,291.10x = 7,936.58 × 1,781.88
  4. Step 4: Simplify right side
    5,291.10x = 14,141,984.58
  5. Step 5: Solve for x
    x = 14,141,984.58/5,291.10
  6. Step 6: Final answer
    x = 2,672.79

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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.